interference as u.s. military prepares for possible strikes against the assad regime after an alleged chemical weapons attack outside damascus killing nearly 50 civilians including young children. the russian jamming started weeks ago. the pentagon won't say if any u.s. drones have fallen out of the sky. the u.s. military maintains sufficient counter measures and protections to ensure the safety of our manned and unmanned aircraft. our forces and the missions they support. the russian military has boosted its spy techniques of late. officials say the equipment moscow is using has at times busted through american military encryption. it comes as more fire power is getting ready to set sail tomorrow morning to head to the mediterranean sea. the u.s.s. harry truman launched strikes two years ago and the u.s. us donald cook is within striking range of syria.