New details about the FBI's failures to comply with restrictions on the use of foreign intelligence for domestic crimes have emerged. Section 702 of the Foreign Intelligence Surveillance Act (FISA) ... grants the government the ability to intercept the electronic communications of overseas targets who are unprotected by the Fourth Amendment. That authority is set to expire at the end of the year. But errors in the FBI's secondary use of the datathe investigation of crimes on US soil"are likely to inflame an already fierce debate over whether law enforcement agents can be trusted with such an invasive tool. Central to this tension has been a routine audit by the Department of Justice's (DOJ) national security division and the office of the director of national intelligence (ODNI) ... which unearthed new examples of the FBI failing to comply with rules limiting access to intelligence ostensibly gathered to protect US national security. Such "errors," they said, have occurred on a "large number" of occasions. A report on the audit, only recently declassified, found that in the first half of 2020, FBI personnel unlawfully searched raw FISA data on numerous occasions. In one incident, agents reportedly sought evidence of foreign influence linked to a US lawmaker. In another, an inappropriate search pertained to a local political party. In what privacy and civil liberties lawyers have termed a "backdoor search," the FBI regularly searches through unminimized data during investigations, and routinely prior to launching them.