Retired Lt. Gen. Sorenson discusses Pentagon's mandate on efficiency, renewables

With Defense Secretary Leon Panetta making conservation, efficiency and renewables key parts of his mandate, how much of a national security threat do environmental issues pose? During today's OnPoint, retired Lt. Gen. Jeff Sorenson, a vice president and partner in A.T. Kearney's defense practice and a former U.S. Army chief information officer, discusses the Defense Department's "Net Zero Initiative" and explains why he believes the military should devote resources to the effort.