Real Safety AI Foundation / Research

Policy, Enforcement, and Implementation

The Thinnest Place: A Designation Architecture Without an Offense, and the Reasonableness of Fear

Publisher: Real Safety AI Foundation

Legal research article.

Written
August 2026
Version
v0.1
Pages
13

Abstract

Federal law defines domestic terrorism but creates no offense of domestic terrorism. What the definition supports is a sentencing enhancement and a set of investigative authorities, which means the label attaches without ever being submitted to a jury and therefore without ever being subject to acquittal. Federal law likewise provides no mechanism for designating a domestic organization a terrorist organization, though an executive directive has instructed the Attorney General to propose such designations. This article traces where an architecture built on an unchargeable label operates first, and argues that the answer follows from Fourth Amendment geography: it operates at the border, because that is the point at which a citizen’s protection against search is thinnest and the Eleventh Circuit requires no suspicion of any kind. A prosecution arising from an Atlanta airport encounter supplies the worked example. The article then identifies a second problem the same architecture creates. Whether a person was seized, whether an encounter was custodial, and whether consent was voluntary are each measured by what a reasonable person would believe, and each test assumes a background in which fear of federal officers is unreasonable absent particularized threat. Where a government has generated a documented record of lethal force against citizens and has publicly characterized political opposition as terrorism, that assumption fails, and a doctrine that continues to apply it transfers the cost of the government’s own posture onto the individual who felt its effect.

Keywords

  • domestic terrorism designation
  • unchargeable label
  • border search exception
  • objective reasonableness
  • consent voluntariness
  • custody analysis
  • political association
  • Joint Terrorism Task Force
  • executive directive
  • reasonable person standard
  • state legitimacy baseline
  • associational surveillance

Plain language slides

First slide of the plain language summary of The Thinnest Place: A Designation Architecture Without an Offense, and the Reasonableness of FearOpen the 20-slide summary (PDF)

Suggested citation

Gilly, Travis. "The Thinnest Place: A Designation Architecture Without an Offense, and the Reasonableness of Fear." Real Safety AI Foundation Legal Research Article, August 2026. https://realsafetyai.org/research/thinnest-place/

Other versions

This paper is also posted on SSRN.

SSRN version

References (22)

  1. Berkemer v. McCarty, 468 U.S. 420 (1984).
  2. Brandenburg v. Ohio, 395 U.S. 444 (1969).
  3. Brennan Center for Justice. (2025). Trump’s orders targeting anti-fascism aim to criminalize opposition. https://www.brennancenter.org/our-work/research-reports/trumps-orders-targeting-antifascism-aim-criminalize-opposition
  4. Casiano, L. (2026). DHS probes whether agents killed VA nurse following accidental discharge during Minneapolis ICE raid. Fox News. https://www.foxnews.com/us/dhs-probes-whether-agents-killed-va-nurse-accidental-discharge-minneapolis-ice-raid
  5. Commonwealth v. Warren, 475 Mass. 530, 58 N.E.3d 333 (2016).
  6. Day, J. (2026). FBI reveals how mistaken identity by ICE led to chase, shooting of Venezuelan immigrant in north Minneapolis. Minnesota Star Tribune. https://www.startribune.com/fbi-reveals-how-mistaken-identity-by-ice-led-to-chase-shooting-of-venezuelan-immigrant-in-north-minneapolis/601567978
  7. Florida v. Bostick, 501 U.S. 429 (1991).
  8. Holder v. Humanitarian Law Project, 561 U.S. 1 (2010).
  9. Kugler, M. B. (2014). The perceived intrusiveness of searching electronic devices at the border: An empirical study. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.2402244
  10. National Ass’n for the Advancement of Colored People v. Alabama ex rel. Patterson, 357 U.S. 449 (1958).
  11. National Public Radio. (2026). Man shot dead by federal immigration officers in Minneapolis. https://www.npr.org/2026/01/24/nx-s1-5687276/man-shot-dead-minneapolis
  12. Penney, J. (2019). Chilling effects and transatlantic privacy. European Law Journal, 25, 122. https://doi.org/10.1111/eulj.12315
  13. American Civil Liberties Union. (2023). How officials in Georgia are suppressing political protest as "domestic terrorism". https://www.aclu.org/news/national-security/how-officials-in-georgia-are-suppressing-political-protest-as-domestic-terrorism
  14. Human Rights Watch. (2023). Letter calling for dropping of domestic terrorism charges against Defend the Atlanta Forest activists. https://www.hrw.org/news/2023/03/03/letter-calling-dropping-domestic-terrorism-charges-against-defend-atlanta-forest
  15. Schneckloth v. Bustamonte, 412 U.S. 218 (1973).
  16. United States v. Aigbekaen, 943 F.3d 713 (4th Cir. 2019).
  17. United States v. Cano, 934 F.3d 1002 (9th Cir. 2019).
  18. United States v. Kolsuz, 890 F.3d 133 (4th Cir. 2018).
  19. United States v. Mendenhall, 446 U.S. 544 (1980).
  20. United States v. Ramsey, 431 U.S. 606 (1977).
  21. United States v. Touset, 890 F.3d 1227 (11th Cir. 2018).
  22. United States v. Tunick, No. 1:25-cr-00499-ELR-CCB (N.D. Ga.) (Indictment, ECF No. 1, filed Nov. 13, 2025; Motion to Suppress Evidence and Statements, ECF No. 21, filed Mar. 17, 2026).

All research