Explain the fisa act and the fourth amendment?

The Foreign Intelligence Surveillance Act (FISA) is a U.S. law enacted in 1978 that establishes procedures for the government to conduct surveillance and collect foreign intelligence information, primarily targeting foreign agents and entities. The Fourth Amendment to the U.S. Constitution protects citizens from unreasonable searches and seizures, requiring warrants to be judicially sanctioned and supported by probable cause. FISA includes provisions that allow for surveillance without a traditional warrant under specific conditions, raising ongoing debates about balancing national security and civil liberties. Critics argue that FISA may infringe upon Fourth Amendment protections, especially regarding domestic surveillance.