A person raises a concern at a meeting. Perhaps a safety procedure is being ignored, an employee is being mistreated, or a decision has consequences that leadership has overlooked. The concern may be uncomfortable, but it offers the organization an opportunity to learn. Someone has noticed something that needs attention.

Then the conversation changes. Instead of asking whether the concern is accurate, people begin asking whether the person is loyal. Why bring this up now? Why undermine confidence? Why make the organization look bad? The warning becomes an offense, and the person carrying it becomes the problem.

Something consequential has happened. An institution has confused a signal that might protect it with a threat to its existence. If that confusion becomes habitual, the institution may grow increasingly determined to defend itself while becoming less capable of recognizing what is actually harming its people.

The same confusion can occur in communities and nations. A healthy society needs to distinguish among differences that enrich collective life, conflicts that require negotiation, and behavior that genuinely threatens the safety and rights of others. When those distinctions deteriorate, unfamiliarity can become evidence of danger, disagreement can become evidence of disloyalty, and belonging can become a shield against accountability.

The changing understanding of biological immunity offers a useful starting point for examining this problem. It cannot supply our moral judgments, but it can challenge a deceptively simple assumption: that health depends upon protecting what belongs and by rejecting what does not.

Foreignness Is Not the Same as Danger

In Immunity: The Evolution of an Idea, physician and philosopher Alfred I. Tauber examines the limitations of organizing immunity entirely around the distinction between self and nonself. That distinction has been scientifically productive, but it cannot by itself explain the full range of immune activity.

Living bodies continually encounter substances and organisms that do not originate within them. Some cause harm. Others contribute to ordinary functioning. Microorganisms participate in relationships with their hosts that can support nutrition, development, and immune regulation. Meanwhile, threats can arise from the body’s own cells, as happens in cancer.

These realities complicate the picture of a body defending an established identity against an exclusively dangerous outside world. Immune activity also participates in maintenance, repair, and the regulation of relationships within and beyond the organism. Tauber draws upon several theories that emphasize how the circumstances of an encounter help determine the response. Recognition alone does not dictate destruction.

The social implication is ours to develop. An antigen is a molecule, or part of a molecule, that the immune system can specifically recognize. Antigens can come from microorganisms, other substances encountered by the body, or the body’s own tissues. Recognition does not necessarily mean danger or lead to attack. Human beings are not antigens, and no population should be described as a pathogen—a biological agent that can cause disease. The comparison concerns how systems distinguish and respond to different encounters; it does not equate people with disease. Nevertheless, the biological discussion helps us ask a necessary question: Are we assessing what someone does, or reacting primarily to who we imagine that person to be?

An unfamiliar accent does not establish harmful intent. A different religion does not demonstrate disloyalty. Criticism does not prove hostility. Conversely, a familiar face, a shared background, or an authoritative title does not establish trustworthiness. People who exploit others often understand how to present themselves as belonging.

A society needs ways to examine conduct that reach beyond the comforting distinction between “people like us” and “people unlike us”.

Belonging Can Help Us See—and Prevent Us from Seeing

Belonging is essential to human life. Through relationships, we acquire language, knowledge, protection, and a sense of continuity. Communities help us understand our experiences and locate ourselves within a larger story. There is nothing inherently unhealthy about attachment to a place, a tradition, or a group.

But a sense of belonging can become associated with conditions that interfere with judgment. A group may require its members to defend leaders regardless of their behavior, dismiss evidence offered by outsiders, or treat public acknowledgment of wrongdoing as betrayal. Under those conditions, loyalty ceases to support responsibility and begins to obstruct it.

Imagine two employees reporting the same safety problem. One is a longtime member of the organization, close to its leadership. The other is a recent arrival who has already been described as difficult. If the organization evaluates the report according to the speaker’s standing rather than the evidence, it has made accurate recognition dependent upon belonging.

The reverse problem is equally dangerous. A respected insider may exploit people for years because the community cannot reconcile the person’s familiar identity with the reports of harm. Those who speak are asked to prove not only what happened, but why anyone should believe them over someone everyone knows. This is part of what has made child abuse and domestic violence so difficult to tackle in many communities.

Healthy belonging must leave room for uncomfortable truth. Otherwise, the relationships that give people security can also make them vulnerable to exploitation by those who know how to use that security against them.

Tolerance Requires Active Support

We often speak of tolerance as though it means doing nothing: overlooking a difference, withholding a reaction, or putting up with something we dislike. Biological immune tolerance offers a more complicated picture. It can depend upon active regulatory processes that prevent a destructive response.

The comparison helps us see that social tolerance requires active support. People must be able to disagree, question decisions, or report wrongdoing without being threatened, humiliated, excluded, or punished for speaking. A workplace, for example, needs more than a leader who says that everyone’s opinion is welcome. It needs ways for employees to raise concerns, receive a fair hearing, and be protected from retaliation. Fair procedures, civil rights, reliable information, and protection against retaliation help establish those conditions. They allow a community to encounter difference without immediately moving toward exclusion.

Consider a school in which parents disagree about a policy. Some want a change; others fear what the change might bring. A functioning process permits people to explain their concerns, examines relevant evidence, protects the students affected, and establishes how a decision will be made and reviewed. Disagreement may remain, but it does not have to end membership in the school community.

The situation changes if one group begins threatening teachers, harassing families, or demanding that certain students be denied ordinary protections. Those actions require a response because they cause harm and constrain other people’s participation. Protecting disagreement includes protecting people from coercion in the name of disagreement.

As in the body’s immune response, social tolerance therefore requires both accommodation and limits. Its purpose is to sustain conditions in which people can live together with rights and dignity. It cannot fulfill that purpose if intimidation is allowed to determine who may speak or belong.

Criticism Can Be Protective

One of the most useful distinctions in Tauber’s writing concerns immune activity directed toward the body’s own components. Such recognition is not necessarily pathological. Ordinary maintenance involves identifying and processing aging, damaged, or dying cells. Harmful autoimmune disease must be distinguished from these physiological activities.

We need a comparable distinction in our social analogy. An institution is not necessarily damaging itself when it investigates its own conduct. A nation is not necessarily weakening itself when it acknowledges wrongdoing. Criticism directed inward can help preserve the conditions upon which collective life depends.

A journalist who uncovers corruption, a professional who reports unsafe practice, or a citizen who challenges an unlawful decision may be carrying information the larger community needs. Whether a particular claim is accurate remains a question for evidence and fair examination. Its direction—toward an insider or an institution of our own—does not make it an attack.

The distinction matters because those seeking protection from accountability often equate themselves with the whole. Criticism of a leader becomes criticism of the organization. Investigation of an administration becomes hostility toward the country. The interests of the power holder are presented as inseparable from the interests of everyone else.

A healthy social immune system must be able to separate them. It needs ways to question authority while protecting people’s rights, assess allegations without prejudging them, and correct wrongdoing without turning accountability into collective punishment.

A society does not attack itself merely by holding its own institutions accountable. Sometimes that is how it protects itself.

When Fear Distorts Recognition

People who have experienced trauma may find that a reminder of past danger evokes a response before the present situation has been fully assessed. Something about a voice, an expression, or an encounter can carry the emotional force of an earlier experience. The response is understandable, even when the current circumstances differ.

Societies do not possess a single mind or nervous system. Yet public life can become organized around histories of injury, humiliation, loss, and fear. These experiences travel through family stories, cultural narratives, political rhetoric, and institutions. They influence what people notice and which explanations feel convincing.

A community struggling with economic insecurity may be offered an account in which an unfamiliar group is responsible for its losses. The insecurity may be real; the proposed explanation may conceal the decisions and concentrations of power that contributed to it. Fear is given a visible target while the underlying conditions remain untouched.

This is one way collective traumatic reenactment can become a useful interpretive framework. Unresolved injury may be repeatedly organized into familiar relationships of domination, submission, and retaliation. A promised protector offers relief by identifying someone to blame, demanding obedience, and presenting force as the path to restored safety.

That interpretation must be used carefully. Trauma does not determine political allegiance, and a traumatic history does not eliminate the capacity for judgment or excuse harmful conduct. But fear can make accurate assessment more difficult, especially when people lack trustworthy information and opportunities to question the story they are being told.

The task is to take people’s pain seriously while examining the explanations attached to it. We can acknowledge loss without accepting scapegoating. We can recognize fear while asking whether a proposed response will make anyone safer.

Protecting the Capacity to Correct Ourselves

The body’s immune response depends on communication among different cells and tissues. Recognition of an antigen is only part of the process. Other signals help determine whether a response is needed, what form it takes, and when it should be restrained. Regulatory mechanisms help prevent protective activity from damaging healthy tissue. Protection therefore depends upon both receiving information and regulating the response.

The social comparison concerns these distributed functions. Societies need ways to detect harm, examine warning signals, respond appropriately, and restrain actions that become destructive. Unlike immune cells, people can deliberately investigate evidence, question interpretations, and establish rules that protect those activities. Independent institutions help carry out this work.

A court needs room to consider a case without being required to protect a favored person. Journalists need to investigate claims rather than reproduce the preferred account of those in power. Scientists need to report findings that may be inconvenient. Employees and citizens need ways to raise concerns without facing retaliation for doing so. These activities bring information into public awareness and help determine whether a claimed threat warrants action.

When a leader discredits every source of unwelcome information, punishes those who speak, and places protective institutions under personal control, both recognition and restraint suffer. Genuine harm may go unchallenged, while harmless differences are treated as dangers. The institutions that should examine the warning and limit the response become instruments for confirming the leader’s judgment.

The biological analogy helps us understand why a stronger response is not necessarily a healthier one. Protection can fail because danger goes undetected, but it can also fail because an excessive or misdirected response causes injury. A society needs the capacity to question both its assessment of danger and what it does in the name of protection.

Independent institutions contribute to that capacity, although independence does not make them infallible. Courts, news organizations, universities, and professional bodies need scrutiny too. A functioning society distributes the work of detecting harm, assessing evidence, and restraining power, while making those performing that work accountable for their own mistakes.

Constitutional Government and the Regulation of Power

One of the most important insights emerging from the biological study of immunity is that the survival of a complex living system depends not simply on its capacity to defend itself against external threats, but on its capacity to regulate its own internal power. An immune system that cannot distinguish between protection and destruction may become a danger to the organism it evolved to protect.

Constitutional democracy faces a remarkably similar challenge. The American founders understood that the greatest danger to a republic might arise not from external enemies but from the concentration and misuse of power within the government itself. They did not assume that those entrusted with authority would always be virtuous. Instead, they constructed a system in which power would be distributed among institutions capable of restraining one another.

James Madison expressed this principle in Federalist No. 51: “Ambition must be made to counteract ambition.” The constitutional separation of powers was intended to ensure that no individual, faction, or branch of government could become the sole judge of the limits of its own authority. The legislative, executive, and judicial branches were expected to possess both the constitutional means and the institutional motivation to resist encroachments upon their respective responsibilities.

This arrangement bears a striking resemblance to the distributed regulation characteristic of healthy living systems. No single component of the immune system possesses unlimited authority. Effective protection depends upon communication, differentiation, reciprocal restraint, and the capacity to recognize when a response intended to protect the whole has become dangerous to it.

The Constitution also establishes something essential about the obligations of public officials. Under Article VI, legislators and executive and judicial officers are bound by oath or affirmation to support the Constitution. The president takes a separate oath to preserve, protect, and defend it. These obligations are not pledges of personal loyalty to another officeholder, a political party, or an ideological movement. They are commitments to the constitutional order itself.

When elected representatives begin to understand their responsibilities primarily in terms of loyalty to a president or party leader, rather than to the Constitution, the regulatory architecture begins to fail. Congress may continue to exist, elections may continue to occur, and courts may continue to issue decisions, while the institutions gradually lose their willingness or ability to perform their protective functions.

The danger is therefore not limited to the formal abolition of democratic institutions. It includes their functional capture. An institution may retain its constitutional name and outward appearance while becoming subordinated to the interests of the very power it was designed to constrain.

Here the biological analogy becomes particularly illuminating. An immune system can become dangerous not only when it fails to respond to a genuine threat, but when its regulatory processes fail and protective mechanisms begin attacking healthy tissue. Similarly, a constitutional system can turn against the society it exists to protect when institutions cease regulating power and instead participate in its concentration.

The central question is not simply whether a society possesses the formal structures of democracy. It is whether those structures retain their independence, their ability to communicate unwelcome information, and their willingness to act when power threatens the health of the larger society.

In this sense, constitutional government represents an extraordinary achievement in the development of a social immune system. It institutionalizes an understanding that power is necessary, that power is dangerous, and that the protection of the whole requires limits upon every part, including those entrusted with its defense.

When these restraints disappear, the problem is not merely political disagreement. It is a breakdown in the society's capacity to regulate itself.

A Community Capable of Change

Tauber’s account invites us to consider biological identity as something maintained through continuing relationships and adjustments, rather than a possession that can be secured once and for all. Human communities face their own questions of continuity and change.

A community can preserve commitments while revising practices that violate them. It can value its history while acknowledging whose experiences were excluded from the official story. It can welcome new participants without requiring established members to abandon every meaningful attachment.

Continuity does not require freezing the community in an imagined past. It requires deciding what deserves preservation and what needs repair. That work becomes possible when belonging includes the right to participate in change.

For Creating Presence and biocratic functioning, this is fundamental. A functioning whole needs differentiated participants whose knowledge and experiences can influence what happens. Integration must preserve the ability to speak, question, and refuse harm. Otherwise, the appearance of unity may conceal enforced silence.

The developmental challenge of democracy is to sustain connection while accepting that no person or group can permanently define the whole on everyone else’s behalf.

A healthy social immune system helps us live with that challenge. It protects unfamiliar people from being condemned merely for their difference, protects communities from genuinely harmful conduct, and protects the opportunities through which mistaken judgments can be corrected. Its work includes resistance to predatory power, but also the continuing renewal of relationships that make collective life possible.

The question is not whether we can eliminate every conflict or uncertainty. It is whether we can remain sufficiently connected, informed, and responsible to distinguish disagreement from destruction—and to act on what we learn.

Scientific Foundations and Further Reading

Gilbert, S. F., Sapp, J., & Tauber, A. I. (2012). “A Symbiotic View of Life: We Have Never Been Individuals.” The Quarterly Review of Biology, 87(4), 325–341. https://doi.org/10.1086/668166

Hamilton, A., Madison, J., Jay, J., & Goldman, L. (2008). The Federalist papers. Oxford University Press. (p. 257)

Tauber, A. I. (2017). Immunity: The Evolution of an Idea. Oxford University Press. Especially the Introduction, Chapter 2, “Whither Immune Identity?,” and Chapter 5, “Eco-Immunology.”

Tauber, A. I. (2015). “Immunology Seen Through the Dark Glass of Autoimmunity.” Metascience, 24, 385–391. https://doi.org/10.1007/s11016-014-9980-x

About this series: This essay accompanies The Social Immune System: How Predatory Power Captures Democracy and How We Can Learn to Resist, by Sandra L. Bloom. Biological findings and Tauber’s philosophical interpretations provide starting points for the discussion. The social and political applications are the author’s interpretive analogies; they do not imply that societies literally possess biological immune systems or that any group of people is a pathogen.