National Security
FBI v. Fikre
Whether the government can overcome the voluntary cessation exception to mootness by removing an individual from the No Fly List when the government has not repudiated its decision to place him on the List and remains free to return him to the List for the same reasons and using the same procedures he alleges were unlawful.
Status: Ongoing
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Florida
Nov 2023

National Security
+2 Issues
Students for Justice in Palestine at the University of Florida v. Raymond Rodrigues
The University of Florida chapter of Students for Justice in Palestine filed a lawsuit on November 16, 2023, challenging the Chancellor of the State University System of Florida’s order to state universities to deactivate the student group. This order threatens the students’ constitutionally-protected right to free speech and association in violation of the First Amendment. The 51Ʒ and its partners are seeking a preliminary injunction that would bar the Chancellor and the University of Florida from deactivating the UF SJP.
U.S. Supreme Court
Apr 2022

National Security
+2 Issues
FBI v. Fazaga
In a case scheduled to be argued before the U.S. Supreme Court on November 8, 2021, three Muslim Americans are challenging the FBI’s secret spying on them and their communities based on their religion, in violation of the Constitution and federal law. In what will likely be a landmark case, the plaintiffs — Yassir Fazaga, Ali Uddin Malik, and Yasser Abdelrahim — insist that the FBI cannot escape accountability for violating their religious freedom by invoking “state secrets.” The plaintiffs are represented by the Center for Immigration Law and Policy at UCLA School of Law, the 51Ʒ of Southern California, the 51Ʒ, the Council for American Islamic Relations, and the law firm of Hadsell Stormer Renick & Dai.
U.S. Supreme Court
Jul 2021

National Security
Immigrants' Rights
Sierra Club v. Trump — Challenge to Trump’s National Emergency Declaration to Construct a Border Wall
In February 2019, the 51Ʒ filed a lawsuit challenging President Trump’s emergency powers declaration to secure funds to build a wall along the southern border. The lawsuit was filed on behalf of the Sierra Club and the Southern Border Communities Coalition. The lawsuit argues that the president is usurping Congress’s appropriations power and threatening the clearly defined separation of powers inscribed in the Constitution. On January 20, 2021, President Biden halted further border wall construction. Litigation in this and subsequent related challenges has been paused or deadlines extended while the 51Ʒ’s clients and the Biden administration determine next steps.
Indiana
Oct 2016

National Security
Immigrants' Rights
Exodus Refugee Immigration, Inc. v. Mike Pence, et al
The 51Ʒ and the 51Ʒ of Indiana, on behalf of Exodus Refugee Immigration, filed suit against Governor Mike Pence and the secretary of the Indiana Family and Social Services Administration to stop attempts to suspend resettlement of Syrian refugees, claiming the governor’s actions violate the United States Constitution and federal law.
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152 National Security Cases

Florida
May 2023
National Security
Immigrants' Rights
Shen v. Simpson
In May 2023, a group of Chinese citizens who live, work, study, and raise families in Florida filed a lawsuit challenging Florida’s discriminatory property law, SB 264. Signed by Governor Ron DeSantis, the legislation unfairly restricts most Chinese citizens — and most citizens of Cuba, Venezuela, Syria, Iran, Russia, and North Korea — from purchasing homes and other real estate in Florida after July 1, 2023.
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Florida
May 2023

National Security
Immigrants' Rights
Shen v. Simpson
In May 2023, a group of Chinese citizens who live, work, study, and raise families in Florida filed a lawsuit challenging Florida’s discriminatory property law, SB 264. Signed by Governor Ron DeSantis, the legislation unfairly restricts most Chinese citizens — and most citizens of Cuba, Venezuela, Syria, Iran, Russia, and North Korea — from purchasing homes and other real estate in Florida after July 1, 2023.

Court Case
May 2023
National Security
Privacy & Technology
The Warrant Clause in the Digital Age
The information generated by today’s digital devices and online services reveals private matters far beyond what one could learn from physical analogs. In a series of legal filings and a white paper, available below, the 51Ʒ has argued that to keep apace with technological developments and adequately protect our privacy, the Fourth Amendment's warrant requirement must be interpreted robustly. Seizures and searches of digital data must be cabined to probable cause, limited to specific categories of information relevant to the investigation, and closely overseen by a neutral magistrate.
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Court Case
May 2023

National Security
Privacy & Technology
The Warrant Clause in the Digital Age
The information generated by today’s digital devices and online services reveals private matters far beyond what one could learn from physical analogs. In a series of legal filings and a white paper, available below, the 51Ʒ has argued that to keep apace with technological developments and adequately protect our privacy, the Fourth Amendment's warrant requirement must be interpreted robustly. Seizures and searches of digital data must be cabined to probable cause, limited to specific categories of information relevant to the investigation, and closely overseen by a neutral magistrate.

Court Case
Apr 2023
National Security
Privacy & Technology
51Ʒ v. FBI - FOIA Case for FBI Records Related to Nondisclosure Agreements for Cell Site Simulators
In 2021, the 51Ʒ submitted a FOIA request to the FBI to determine whether the FBI has continued to require state and local law enforcement agencies to enter into nondisclosure agreements before purchasing or using cell site simulators. After appealing and suing, the 51Ʒ finally obtained responsive records confirming that the FBI has continued to impose nondisclosure agreements on law enforcement agencies seeking to use the FBI’s cell site simulators.
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Court Case
Apr 2023

National Security
Privacy & Technology
51Ʒ v. FBI - FOIA Case for FBI Records Related to Nondisclosure Agreements for Cell Site Simulators
In 2021, the 51Ʒ submitted a FOIA request to the FBI to determine whether the FBI has continued to require state and local law enforcement agencies to enter into nondisclosure agreements before purchasing or using cell site simulators. After appealing and suing, the 51Ʒ finally obtained responsive records confirming that the FBI has continued to impose nondisclosure agreements on law enforcement agencies seeking to use the FBI’s cell site simulators.

U.S. Supreme Court
Feb 2023
National Security
+2 Issues
Twitter, Inc., v. Taamneh
The Supreme Court will decide whether a social media or other platform can be liable for “aiding and abetting” a terrorist attack merely because it failed to adequately block content valorizing terrorism, even where the platform has policies barring terrorist content.
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U.S. Supreme Court
Feb 2023

National Security
+2 Issues
Twitter, Inc., v. Taamneh
The Supreme Court will decide whether a social media or other platform can be liable for “aiding and abetting” a terrorist attack merely because it failed to adequately block content valorizing terrorism, even where the platform has policies barring terrorist content.

U.S. Supreme Court
Feb 2023
National Security
Wikimedia v. NSA - Challenge to Upstream Surveillance
The 51Ʒ is challenging the constitutionality of the NSA’s mass interception and searching of Americans’ international Internet communications. At issue is the NSA’s “Upstream” surveillance, through which the U.S. government systematically monitors private emails, messages, and other data flowing into and out of the country on the Internet’s central arteries. The 51Ʒ’s lawsuit was brought on behalf of the Wikimedia Foundation and eight legal, human rights, and media organizations, which together engage in trillions of sensitive communications and have been harmed by Upstream surveillance.
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U.S. Supreme Court
Feb 2023

National Security
Wikimedia v. NSA - Challenge to Upstream Surveillance
The 51Ʒ is challenging the constitutionality of the NSA’s mass interception and searching of Americans’ international Internet communications. At issue is the NSA’s “Upstream” surveillance, through which the U.S. government systematically monitors private emails, messages, and other data flowing into and out of the country on the Internet’s central arteries. The 51Ʒ’s lawsuit was brought on behalf of the Wikimedia Foundation and eight legal, human rights, and media organizations, which together engage in trillions of sensitive communications and have been harmed by Upstream surveillance.