U.S. Defense Secretary Ash Carter and the nation's spy chief this week urged a key Senate committee to amend federal law to allow a joint venture of the two largest U.S. arms makers to use more Russian RD-180 rocket engines.
Reuters: McCain rejects Pentagon push for more Russian rocket engines
Joint Chiefs of Staff Martin Dempsey (L) and U.S, Secretary of Defense Ash Carter speak to the media during a briefing at the Pentagon April 16, 2015 in Arlington, Virginia.
