Section 702 of the Foreign Intelligence Surveillance Act expires on Monday, April 20, 2026 — two days from now. Here is what the law does, why it matters, what happens if it expires, and what Congress is about to decide.
This is the essential guide for anyone following the debate for the first time.
What Section 702 Actually Does
Section 702 was enacted in 2008 as part of the FISA Amendments Act. It authorizes the National Security Agency to collect the communications — emails, text messages, phone calls, and internet activity — of non-U.S. persons located outside the United States, without obtaining an individualized court order for each target.
The legal theory is straightforward: foreign nationals outside the United States do not have Fourth Amendment rights, so the government does not need a warrant to surveil them. The Foreign Intelligence Surveillance Court (FISC) approves annual certifications that authorize broad categories of collection, rather than individual warrants for individual targets.
The practical reality is more complicated. Because modern communications are routed through servers and infrastructure operated by American technology companies, Section 702 collection inevitably sweeps up enormous volumes of Americans' communications — any conversation with a foreign target, any email that passes through the same server, any communication that contains a selector (phone number, email address) associated with a foreign target.
The result is a database of hundreds of billions of communications records that includes a substantial and unknown quantity of Americans' private communications, collected without any warrant, any probable cause finding, or any individualized judicial authorization.
The "Backdoor Search" Problem
Here is where the constitutional question becomes urgent.
Once the NSA collects communications under Section 702, those communications sit in databases accessible to multiple federal agencies — including the FBI, the CIA, and the National Counterterrorism Center. These agencies can then search that database using Americans' names, phone numbers, and email addresses as search terms. These searches are called "U.S.-person queries" or, by critics, "backdoor searches."
In 2021, the FBI conducted approximately 3.4 million U.S.-person queries of Section 702 data, according to the Office of the Director of National Intelligence's annual transparency report. After public backlash, the FBI implemented new internal policies. By 2025, the number of FBI queries had dropped to 7,413 — still thousands of warrantless searches of Americans' communications, but a fraction of the 2021 figure.
The reduction was the result of FBI internal policy changes, not legal requirements. The FBI is not prohibited by law from conducting warrantless searches of Americans' communications in the Section 702 database. It chose to conduct fewer. A future FBI director could choose to conduct more. Without a statutory warrant requirement, the only constraint is institutional self-restraint — and the FBI's own Inspector General has documented repeated failures of that self-restraint.
The FBI also acknowledged in Department of Justice court filings that bureau personnel used an "advanced filter function" that conducted additional U.S.-person queries beyond those captured in standard oversight logs. A FISA Court-ordered review was unable to determine how many such queries occurred. The number 7,413 is itself an undercount of unknown magnitude.
What Happens If Section 702 Expires Monday
If Congress does not reauthorize Section 702 before April 20, the law sunsets. But the consequences are not as simple as surveillance stopping overnight.
Any FISA Court order authorizing Section 702 collection that is in effect on April 20 remains valid until that order's expiration date, according to the Congressional Research Service. The government could continue collection under existing orders for up to a year after the statute expires.
However, the practical constraints may be more immediate. Some telecommunications carriers that manage data for the surveillance program have privately warned the administration they will cease collecting data on April 20 if the law is not renewed, according to CNN, citing concerns about legal liability. Without the statutory authorization, the companies face potential lawsuits for participating in government collection programs.
Intelligence officials have described the potential consequences in stark terms. Former spy chiefs have warned Congress that allowing Section 702 to lapse would place the United States "at the brink of a self-inflicted national security calamity," according to State of Surveillance. One former senior national security official stated that "we are going to go blind for a while and that's incredibly concerning amid a war."
The national security argument for reauthorization is real. The constitutional argument for requiring a warrant before searching Americans' data is also real. The question Congress is avoiding is whether both can be addressed simultaneously.
The Warrant Requirement Debate
The reform proposal is not complicated: before a government agent searches the Section 702 database for an American's name, phone number, or email address, that agent must obtain a warrant based on probable cause — the same constitutional standard required to open your mail, search your home, or tap your phone.
The Government Surveillance Reform Act, introduced by Representatives Zoe Lofgren (D-CA) and Warren Davidson (R-OH) and Senators Ron Wyden (D-OR) and Mike Lee (R-UT), includes this warrant requirement along with closure of the data broker loophole that allows intelligence agencies to purchase Americans' location data without judicial authorization.
The reform has bipartisan support. In April 2024, a House amendment requiring warrants failed on a 212-212 tie vote, according to NPR — meaning a single additional vote would have imposed the warrant requirement two years ago.
The White House and intelligence community are pushing for a "clean extension" — reauthorization with no reforms. CIA Director John Ratcliffe and White House deputy chief of staff Stephen Miller have been personally lobbying Republican members to support a clean extension, including hosting a classified briefing with House Freedom Caucus members, according to CNN.
The Brennan Center for Justice reports that coalitions of more than 130 civil liberties organizations have urged Congress not to reauthorize Section 702 without reforms, including warrant requirements and closure of the data broker loophole.
A federal district court ruled in February 2025 that the Fourth Amendment requires the government to obtain a warrant to search Section 702 data using U.S.-person terms, unless a specific established exception applies, according to EPIC. That ruling has not been applied to the current reauthorization debate.
The Key Players
Pushing for clean extension (no reforms): President Trump, Speaker Mike Johnson (R-LA), CIA Director John Ratcliffe, DNI Tulsi Gabbard, FBI Director Kash Patel, NSA Director Timothy Haugh, Stephen Miller (White House deputy chief of staff)
Pushing for warrant requirement: Rep. Andy Biggs (R-AZ), Rep. Warren Davidson (R-OH), Rep. Zoe Lofgren (D-CA), Sen. Mike Lee (R-UT), Sen. Ron Wyden (D-OR), Sen. Dick Durbin (D-IL), the Congressional Progressive Caucus (98 House Democrats), 130+ civil liberties organizations
Undecided or shifting: Rep. Darrell Issa (R-CA), who voted against renewal in 2024 but has indicated he believes reforms are working, per The Hill
What You Can Do
Section 702 expires Monday. The vote is expected this week. Every member of Congress has a publicly listed office phone number. 5 Calls maintains a tool that identifies your representatives and provides a script for calling about Section 702.
The question before Congress is not whether the United States should conduct foreign intelligence collection. It is whether the constitutional standard of probable cause — a requirement that predates the republic — should apply when the government searches Americans' private communications.
Two days. One vote. Your Fourth Amendment rights.
Why It Matters
The warrant requirement is not a radical proposal. It is the default constitutional standard for every other type of government search in America. You cannot search someone's home without a warrant. You cannot tap someone's phone without a warrant. You cannot open someone's mail without a warrant. The question is whether the government should be able to search someone's emails and text messages without one — simply because those communications were collected as a byproduct of foreign intelligence surveillance.
The Fourth Amendment does not have a technology exception. It does not have a national security exception. It has a warrant requirement. Monday, Congress decides whether that requirement still means anything.
This explainer draws on the Congressional Research Service's analysis of Section 702 (R48592), the Office of the Director of National Intelligence's annual transparency reports, the Brennan Center for Justice's 2026 Section 702 resource page, EPIC's Section 702 reform tracker, and reporting by NPR, CNN, and CBS News. For Bastion Daily's full investigation into who is funding the think tanks on both sides of this debate, read Follow the Money: The Think Tanks Lobbying to Keep Your Data Unprotected. For the full accountability tracker on Section 702 lobbying, read our FISA countdown investigation.