NSA warrantless surveillance

NSA warrantless surveillance refers to the practice where the National Security Agency collects and monitors phone calls, emails, and internet activity of individuals within the U.S. without obtaining specific warrants or individualized suspicion. Initiated after the September 11, 2001 attacks, its goal is to detect terrorist threats proactively. While aimed at national security, this surveillance raised concerns about privacy rights and legal boundaries, as it involves collecting large amounts of data indiscriminately. The practice has prompted debates over the balance between security and civil liberties, leading to increased oversight and legal reforms.