Defense Environment Alert -- The Defense Department is signaling it may abandon its years-long push to win exemptions from provisions of federal waste laws, following its failure to convince Congress that cleanup laws are impeding military readiness, according to defense and other sources. The Pentagon, however, is still weighing a renewed push for a measure that would temporarily relax Clean Air Act (CAA) requirements for military readiness activities. DOD's advocacy for the measure may largely turn on whether the 2005...