Putin not backing down on Crimea despite Obama call. (NBC News)
FBI probing alleged removal of documents from CIA by Senate staffers. (McClatchy)
Judge orders Duke Energy to stop toxins from leaking from its coal-ash ponds. (WRAL)
The Tax Policy Center calculates most Obamacare penalties would be more than the oft-cited $95. (WSJ)
Oklahoma children to get helmets for tornado protection. (AP)
Rep. Darryl Issa apologizes to Rep. Elijah Cummings. (San Diego Union-Tribune)
Assault of Pussy Riot members caught on camera. (NY Times)
Which states had the most per capita UFO sightings last year? (Washington Post)
Rocket cats! (Time)