1/15: Air Force cheating scandal leaves cloud hanging over missile force; How prepared is Calif. for next big quake?
Thirty-four U.S. nuclear missile launch officers have been implicated in a cheating scandal the Air Force Chief of Staff Mark Welsh says may be the worst cheating scandal ever to hit the nuclear forces; and, as the 20th anniversary of the devastating Northridge earthquake nears, Ben Tracy takes a look at California's earthquake preparedness.