Defense officials have embarked on a systematic review of threats to U.S. military spacecraft while at the same time investing in capabilities to "deny" adversaries the use of space, according to Deputy Defense Secretary Ashton Carter. "We have established for the first time an integrated effort to bring together our space programs, all of them, with those folks who understand best the anti-satellite threat, and also how we can operate, if we have to, without spacecraft," Carter told reporters during...