Gingrich warns EMP greatest strategic threat to U.S.

Gingrich warns EMP greatest strategic threat to U.S.: "WASHINGTON – In the Republican presidential debate Tuesday on CNN, presidential candidate and former Speaker of the House Newt Gingrich announced a threat to U.S. national security that no other candidate has discussed and that commentators described as "out of the box" until they researched it for themselves.

The potential threat Gingrich referred to was an electromagnetic pulse, or EMP, attack that "would literally destroy the country's capacity to function." Gingrich pointed out that no one is talking about the potential for such an attack to cripple America's critical infrastructure."