The U.S.’s top intelligence official has greatly expanded the range of federal and local authorities who can get access to information from the nation’s vast network of spy satellites in the U.S.
Unlike electronic eavesdropping, which is subject to legislative and some judicial control, this use of spy satellites is largely uncharted territory. Although the courts have permitted warrantless aerial searches of private property by law-enforcement aircraft, there are no cases involving the use of satellite technology.
In recent years, some military experts have questioned whether domestic use of such satellites would violate the Posse Comitatus Act. The act bars the military from engaging in law-enforcement activity inside the U.S., and the satellites were predominantly built for and owned by the Defense Department.