No-Fly List — Secret Blacklist Without Due Process

• Maintained by: FBI Terrorist Screening Center; subsidiary list within the Terrorist Screening Database (TSDB)
• TSDB total: Approximately 1.6 million names
• Americans on No-Fly List: Approximately 4,600 U.S. citizens and permanent residents
• Created: Post-9/11, operationally deployed 2003; no single authorizing statute
• Redress process: DHS TRIP (Traveler Redress Inquiry Program) — criticized by federal courts as constitutionally inadequate

A federal agency put a Stanford PhD student on the No-Fly List because an FBI agent checked the wrong box on a form. When she tried to find out why she was banned from flying, the government invoked the state secrets privilege — to hide the fact that the government itself had made a clerical error. She was handcuffed. She was held for two hours. It took over a decade of litigation before a court finally ordered her removed. And even then, the government spent years fighting disclosure of what had actually happened. That is the No-Fly List. Secret criteria. Secret evidence. No charges. No trial. No appeal to any court before your name goes on. A "redress" process a federal judge called constitutionally deficient. And if you are on it, good luck getting off.

How It Passed

The No-Fly List was not created by Congress. It emerged from executive action after September 11, 2001, when the FBI's Terrorist Screening Center began consolidating watch lists from multiple agencies into a single database. The list grew through administrative accretion — agency by agency, policy memo by policy memo — without a floor vote or a public statute specifying who could be placed on it, under what standard, with what evidence, and with what rights to contest the designation.

The Aviation and Transportation Security Act (2001) created TSA and gave it broad authority to develop security programs. The Intelligence Reform and Terrorism Prevention Act (2004) formalized the Terrorist Screening Database framework. Neither statute specified the standards for placing an American citizen on the No-Fly List. Neither statute created meaningful procedural protections for people placed on the list.

What has existed since 2001 is a system built entirely by executive agencies — the FBI, TSA, DHS, and the intelligence community — operating under classified standards, classified evidence, and a classified decision-making process. Congress has funded this system every year. Congress has never passed a statute that specifies the standard of evidence required to ban an American from air travel or the process by which that American can challenge the designation.

The system has expanded continuously. In 2021, reports indicated that ICE was submitting names for watch list inclusion. The criteria for what constitutes sufficient basis for placement have never been made fully public.

What It Does To You

You Cannot Fly

If your name appears on the No-Fly List, you cannot board a commercial aircraft in the United States. You cannot fly to your family. You cannot attend a business meeting. You cannot leave the country. You cannot return to the country by air if you happen to be abroad when your name is added. The right to travel — which the Supreme Court has recognized as a fundamental constitutional right — is eliminated by an administrative decision you had no notice of, no hearing on, and no opportunity to contest before it happened.

You Are Not Told Why

The government does not tell you why you were placed on the list. The criteria are classified. The evidence is classified. The specific facts the government relied on are classified. You may receive, through the DHS TRIP process, a letter confirming that your status has been reviewed. You will not receive an explanation of the basis for your designation.

You Cannot See the Evidence Against You

You cannot challenge what you cannot see. The government's evidence for placing you on the No-Fly List is not disclosed to you. The witnesses or sources the government relied on are not identified. The analytic judgments that connected information to your name are not explained. You are denied the most basic element of due process — the ability to know and respond to the case against you.

The "Redress" Process Is Not Redress

DHS TRIP is the government's official process for challenging watch list designations. Here is how it works in practice: you submit a form requesting review. You receive an acknowledgment letter. You wait. You may eventually receive a response indicating that your status has been reviewed and either confirming or — if you are fortunate — indicating that the concern has been resolved. The response will not tell you whether you were ever on the list, what the list was, what the evidence was, or what changed.

A federal court found that this process violates the Due Process Clause of the Fifth Amendment because it provides no meaningful opportunity to contest placement. Despite that finding, the process remains largely unchanged.

You May Not Know You Are On The List Until You Try to Board

There is no notification when your name is added to the No-Fly List. You may discover you are on it at an airport check-in counter, when an agent tells you that you cannot board and calls for additional security personnel. You may be publicly detained. You may miss your flight. You will not receive a written explanation at the airport. You may not receive one ever.

Rights It Strips

Fifth Amendment Due Process — Punishment Without Process

Banning a person from air travel is a severe deprivation of liberty. The Supreme Court has held that the right to travel is a fundamental constitutional right. Fundamental rights cannot be stripped by the government without due process — meaningful notice of the basis for the deprivation, an opportunity to be heard by a neutral decision-maker, and the right to confront and respond to the evidence against you.

The No-Fly List process provides none of these things. The basis is secret. The evidence is secret. The decision-maker is an executive agency operating under classified standards. The "hearing" is a paper submission into a process that returns vague, conclusory responses. A federal court found this unconstitutional. The government restructured the process slightly and continued operating the list.

First Amendment — Punishment for Association and Belief

Civil rights organizations have documented that Muslim Americans, Arab Americans, Somali Americans, and people who have traveled to certain countries — regardless of the purpose of their travel — are disproportionately represented on watch lists. The criteria for watch list inclusion include associations, religious activity, and travel patterns that are constitutionally protected. Attending a mosque, having family in certain countries, or belonging to certain organizations can generate watch list referrals.

The No-Fly List operates as a system for punishing constitutionally protected associations and beliefs without trial, without charges, and without any public accounting of who is designated and why.

Sixth Amendment — No Right to Confront Accusers

In any criminal proceeding, the Sixth Amendment guarantees you the right to be confronted with the witnesses against you. On the No-Fly List, there are no witnesses. There is no proceeding. There is no opportunity to challenge the people who provided information leading to your designation. The government can act on an informant's tip, an analyst's inference, or a clerical error — and you have no mechanism to discover which of those things happened or to challenge it.

Documented Abuses

Rahinah Ibrahim — Checked the Wrong Box

Rahinah Ibrahim was a Malaysian architect and Stanford University PhD student. She was placed on the No-Fly List because an FBI agent in San Francisco checked the wrong box on a form. The agent intended to NOT recommend her for watch list placement. The agent checked the box that DID recommend placement. Ibrahim was added to the list.

In January 2005, Ibrahim was handcuffed at San Francisco International Airport, held for two hours, and prevented from boarding her flight. She eventually left the country and was unable to return to the United States to attend her own court proceedings.

When she sued, the government invoked the state secrets privilege — to hide the fact that the government itself had made a bureaucratic error. It took over a decade of litigation. A federal court finally ordered her removal from the list. The government appealed. It fought the disclosure of what had actually happened. The case became a landmark in watch list litigation, and what it revealed was this: the government will invoke national security secrecy to conceal its own mistakes.

13 U.S. Citizens — Never Charged With Anything

The ACLU represented 13 U.S. citizens and permanent residents who were on the No-Fly List — none of them had ever been charged with or convicted of any crime. They included a U.S. Army veteran, a college student, a business consultant, and people who had lived in the United States for decades. Their cases documented the pattern: once on the list, you are presumed dangerous regardless of your actual record, and the process for challenging that presumption is designed to fail.

In 2019, the Ninth Circuit Court of Appeals ruled partially in favor of the ACLU plaintiffs, finding that the revised DHS TRIP process provided somewhat more meaningful notice than the prior version. The court did not order the government to disclose the evidence against the plaintiffs. The fundamental secrecy remains intact.

Children and Infants on Watch Lists

Multiple media reports have documented cases of children — including infants — whose names matched names on government watch lists, resulting in delayed boarding or additional screening. The government's watch list matching system uses name matching algorithms that generate false positives for people who share names with listed individuals. There is no expedited process for clearing a child whose name matches a watch list entry.

Disproportionate Targeting of Muslim Americans

Organizations including the ACLU, Muslim Advocates, and the Brennan Center for Justice have documented, through litigation discovery and government reports obtained under FOIA, that Muslim Americans, Arab Americans, and people who have attended certain mosques or religious organizations are disproportionately placed on watch lists. The government has acknowledged that tips from confidential informants — informants who may have been paid for producing referrals — have generated watch list placements.

The Watchlisting Guidance Leak — "Reasonable Suspicion" Means Nothing

In 2014, The Intercept published leaked government documents revealing the internal rules for watch list placement. The standard is "reasonable suspicion" — defined as a "reasonable articulable suspicion" that a person "is a known or suspected terrorist." The documents revealed that the government can place someone on the list based on a single source, including a social media post, and that entire groups can be designated based on their association with a designated organization. The definition of "reasonable suspicion" in these guidelines is broad enough to encompass enormous amounts of protected activity.

Who Pushed This

The FBI's Terrorist Screening Center created and maintains the No-Fly List and the broader TSDB. The FBI has defended the program's secrecy in every court proceeding, consistently arguing that disclosure of the criteria and evidence would damage national security — even in cases where the evidence of placement was a clerical error.

The TSA and DHS administer the operational side — running names against the list at airport check-in, managing the DHS TRIP redress process, and lobbying Congress for continued authority and funding. Both agencies have consistently argued that any greater transparency would compromise aviation security.

The intelligence community — particularly the National Counterterrorism Center — contributes names and analytic assessments to the TSDB. The criteria used by intelligence agencies for watch list nomination are classified. Intelligence community equities are invoked to block disclosure in litigation.

Post-9/11 Congressional majorities from both parties passed the broad statutory frameworks — the Aviation and Transportation Security Act (2001) and the Intelligence Reform and Terrorism Prevention Act (2004) — that gave executive agencies the authority to build this system without specifying constitutional safeguards. Neither party has since passed legislation to impose meaningful due process requirements on watch list placement.

Key Votes

Aviation and Transportation Security Act (2001) — Senate 100–0; House 410–9:

Passed in the immediate aftermath of September 11, 2001. This is the legal foundation for TSA's authority to implement the No-Fly List operationally. The vote was nearly unanimous. There was almost no debate about what kind of due process Americans would have if they were incorrectly placed on a government travel blacklist.

Intelligence Reform and Terrorism Prevention Act (2004) — Senate 89–2; House 336–75:

Formalized the Terrorist Screening Database framework. Passed with overwhelming bipartisan majorities. Created the Terrorist Screening Center. Did not specify the standard of evidence required to ban an American from flying. Did not create a meaningful process for challenging watch list placement.

No statutory reform has passed either chamber since:

Every Congress since 2004 has received legislation proposing warrant requirements, due process protections, or transparency measures for watch list designation. None has advanced to a floor vote. Every committee chair who has sat on the Senate Judiciary Committee, Senate Homeland Security Committee, House Judiciary Committee, or House Homeland Security Committee has had the authority to advance due process protections and has chosen not to.

Why This Matters for We The Citizens

The No-Fly List is a template for executive power without judicial check. A government agency decides you are dangerous. You are not charged. You are not tried. You are not heard. Your fundamental right to travel is eliminated by administrative decision, and the "process" for challenging it is a paper form that yields no explanation and no accountability.

What the government does to travelers, it can do to voters, to activists, to organizers. The same logic — secret criteria, secret evidence, national security deference — has migrated from travel blacklists to financial blacklists, from no-fly designations to social media deplatforming pressure, from airport detention to bank account closures. The infrastructure of secret administrative punishment does not stay limited to one context.

Any candidate who has served in Congress and declined to advance due process protections for watch list designees has voted — by inaction — to preserve the right of the executive branch to ban Americans from air travel based on secret evidence with no meaningful right of appeal. That is not a minor oversight. It is a fundamental choice about who runs this country: elected representatives accountable to voters, or classified bureaucracies accountable to no one.

See also: Bad Laws Overview | TSA/CBP Biometric Surveillance | PATRIOT Act | REAL ID Act