Mitt Romney has more than half the delegates needed to clinch the GOP presidential nomination after wins in three more presidential primaries Tuesday. In other headlines, the Dallas-Fort Worth metro area was struck by as many as a dozen tornadoes yesterday; President Obama will sign the STOCK Act today, which bars members of Congress from profiting from information gained from their jobs; 200 U.S. Marines arrive in Australia for a permanent joint-training mission; and Baylor topped off a perfect 40-0 season with a win against Notre Dame in the Women’s NCAA Basketball Championship last night.