By Alice Mannette MOORE, Oklahoma (Reuters) - A 2-mile-wide (3-km-wide) tornado tore through the Oklahoma City suburb of Moore on Monday, killing at least 51 people while destroying entire tracts of homes, piling cars atop one another, and trapping two dozen school children beneath rubble. Twenty of the 51 confirmed deaths were children, the Oklahoma medical examiner said, and at least 45 of the 230 people injured were children, according to area hospitals. It was the deadliest U.S. tornado since one killed 161 people in Joplin, Missouri, two years ago. ...

By Tabassum Zakaria and Mark Hosenball WASHINGTON (Reuters) - President Barack Obama's administration has decided to give the Pentagon control of some drone operations against terrorism suspects overseas that are currently run by the CIA, several U.S. government sources said on Monday. Obama has pledged more transparency on controversial counterterrorism programs, and giving the Pentagon the responsibility for part of the drone program could open it to greater congressional oversight. ...

By Richard Weizel WESTPORT, Connecticut (Reuters) - Connecticut rail commuters endured crowded and rerouted rides in to work on Monday, as Metro-North worked to repair the busiest U.S. rail line after a two-train collision and derailment injured more than 70 people late last week. Connecticut Governor Dannel Malloy said commuters should expect "serious disruptions," and encouraged riders to stay home if possible as repair crews worked to fix or replace more than 2,000 feet of track as well as overhead wires and other equipment. ...