...warrant and to carry the burden of establishing probable cause that such character of surveillance is necessary (1) to protect the Nation against actual...potential attack or other hostile acts of a foreign power, or (2) to obtain foreign intelligence information deemed essential to the security of the United States,...

...does not limit the constitutional power of the President to take such measures as he deems necessary to protect the nation against actual or potential attack or other Hostile acts of a foreign power, to obtain foreign intelligence information deemed essential to the security of the United States, or...

...605) shall limit the constitutional power of the President to take such measures as he deems necessary to protect the Nation against actual or potential attack or other hostile acts of a foreign power, to obtain foreign intelligence information deemed essential to the security of the United States, or...

...as a necessary investigative technique under the Presidential power to protect the national security against actual or potential attack or other hostile acts of a foreign i>ower, to obtain foreign intelligence information deemed essential to the security of the United States,...

...surveillance. The first three categories related to foreign intelligence and counterintelligence matters : (1) to protect the Nation against actual or potential attack or other hostile acts of a foreign power ; (9) to obtain foreign intelligence information deemed essential to the security of the United States...

...1934 shall limit the Constitutional power of the President to take such measures as he deems necessary to protect the nation against actual or potential attack or other hostile acts of a foreign power to obtain intelligence or information deemed essential to the security of the United States, or to...

...added. He stated : Requests are only authorized when the requested electronic surveillance is necessary to protect the nation against actual or potential attack or other hostile acts of a foreign power; to obtain foreign intelligence deemed essential to the security of the nation; to protect national...

...605. shall limit the constitutional power of the President to take such measures as he deems necessary to protect the nation against actual or potential attack or other hostile acts of a foreign power, to obtain foreign intelligence information deemed essential to the security of the United States, or...

...utilize electronic surveillance techniques when deemed essential as a means of gathering information to protect the Nation against actual or potential attack or other hostile acts of a foreign power and to gain foreign intelligence information. The President derives such authority primarily as the...

...605) shall limit the constitutional power of the President to take such measures as he deems necessary to protect the Nation against actual or potential attack or other hostile acts of a foreign power, to obtain foreign intelligence information deemed essential to the security of the United States, or...