The crisis in Ukraine has sparked calls for the U.S. to step up its natural gas exports. The hope is that increased supplies will weaken the hand of Russia, Iran or other nations in future confrontations.
Ex-death row inmate Edward Lee Elmore spent 30 years locked up for a murder he says he didn't commit. It all poses big questions about the justice system. Watch "Death Row Stories," Sunday at 9 p.m. ET.