The Joint Requirements Oversight Council will review the Army's ground combat vehicle requirements this fall, according to a top Pentagon official. Adm. Michael Mullen, chairman of the Joint Chiefs of Staff, appeared today at a Senate Armed Services Committee hearing on his nomination for a second term. In prepared responses to advance questions, Mullen emphasized the Defense Department's continued commitment to helping the Army develop and field a new GCV. The GCV is the service's effort to replace the Future...