U.S. Defense Secretary Ash Carter says the military will attempt to learn from the tragic loss of life in two incidents Thursday -- one in Texas, the other in Tennessee -- since both involved safety issues in training.
As North Korea rattles its nuclear saber, threatening to bomb the U.S. at "any moment," a nerve-jangling question hangs in the air: If Pyongyang did launch a nuclear-armed missile at an American city, could the Pentagon's missile defenses overcome their spotty test record and shoot it down beyond U.S. shores?
Among the work-related emails that Defense Secretary Ash Carter handled with his personal unsecured account was a message from a group promoting cybersecurity. Oh, the irony.