In the 1940s and 1950s, Congress granted the president additional powers during times of war or national emergency to shut down communications services such as radio stations and other transmitters and “any or all facilities or stations for wire communications.” The president may also authorize a temporary government takeover of such services for national security reasons.
In recent decades, this provision has been interpreted by some as effectively giving the president a “kill switch” to shut down the internet during a national emergency. Rand Paul and a bipartisan group of senators in September introduced legislation which would amend the statute.