At the prompting of the Defense Department's inspector general, the Army will determine whether a warfighting need exists for the second version of a new mortar-launched weapon, according to a newly released IG report. Developing this version will cost the Army up to $26 million. The IG looked at the Army's plan to develop the Precision Guided Mortar Munition, a laser-guided 120 millimeter round that can be fired from standard mortars on existing platforms. "The mortar locks onto a target...