Pentagon officials and their counterparts at the Federal Aviation Administration must expedite efforts to set up the necessary protocols to allow unmanned aircraft operations above the continental United States, a senior military official said this week. Adm. James Winnefeld, the commander of U.S. Northern Command and the North American Aerospace Defense Command, said the lack of such agreements has left command officials unable to address “some pretty important needs” concerning homeland security via unmanned aerial operations, he said. “We have...