The Defense Department wants Congress to moderate a key provision of the 2009 Weapons System Acquisition Reform Act that mandates a preliminary design review before the Pentagon's acquisition executive can formally initiate a new, big-ticket project. The provision is one of many that aims to reduce the risk of cost growth and schedule delays as early as possible. But in a legislative proposal sent to lawmakers on May 15 -- to be considered along with the fiscal year 2014 defense...