"60 Minutes" Preview: David Kelley

Time Magazine senior writer Bryan Walsh talks about the impact the sequester cuts may have had on the National Weather Service and touches on technological advances that could improve the warning system in advance of tornadoes.

Time magazine senior environment and energy writer Bryan Walsh explains the geological limitations Oklahoma residents have to face as they try to build tornado bunkers and talks about what the local government should learn about providing shelter from deadly tornadoes.

"CTM" takes a look at some inspiring stories of survival in wake of the Moore, Okla., tornado.

A older couple is taking shelter at the First Baptist Church in Oklahoma after they spent the night hiding in the bathtub, as the back of their home was ripped off by the hurricane. Elaine Quijano reports.

Rep. Tom Cole, who represents the city of Moore, Oklahoma, in Congress talks to Charlie Rose about the massive tornado that ripped through his district.

Glenn Lewis, the mayor of Moore, Okla., talks to Norah O'Donnell about how the city is coping in the wake of a massive tornado that devastated homes, five schools and a major hospital.