The Missile Defense Agency -- which seeks $1.3 billion annually for testing -- could not account for more than half of the $3.5 billion appropriated for such activities between 2017 and 2020, according to a federal audit. The Government Accountability Office, in a February report , found that as a result MDA’s yearly request to support missile defense testing is based on inaccurate cost estimates. “MDA accounted for only about $1.3 billion of $3.5 billion in funding the agency requested...