UPDATE 1-Two U.S. arms programs face live-or-die reviews after costs jump
April 17, 2014 at 19:04 PM EDT
WASHINGTON, April 17 (Reuters) - An unmanned U.S. Navy helicopter built by Northrop Grumman Corp and a precision ship-landing system built by Raytheon Co face mandatory reviews that could lead to their cancellation after quantity reductions drove unit costs sharply higher in 2013, the Pentagon announced on Thursday.