Army leaders are heading to Iraq and Kuwait on a mission to determine exactly how many Mine Resistant Ambush Protected vehicles the service needs, an assessment that could propel the total size of the MRAP program well beyond 23,000 vehicles and the price tag north of $23 billion, according to defense sources. Adm. Edmund Giambastiani, the vice chairman of the Joint Chiefs of Staff and the Pentagon's top requirements officer, said in an interview with InsideDefense.com on June 5 that...