The Army's $6.3 billion bid to rapidly field a replacement for its aging fleet of Kiowa reconnaissance helicopters is facing significant new cost growth that could derail it for good. The Army today notified Congress that costs for the Armed Reconnaissance Helicopter program have exceeded the "critical" threshold -- more than 25 percent of the original 2005 program baseline -- set by Nunn-McCurdy legislative provisions. The law now requires that the Pentagon prepare an extensive justification for why the rotorcraft...