Twelve senators have asked the Federal Communications Commission to investigate complaints against the state and local law enforcement agencies’ use of surveillance devices that simulate cellphone towers to gather cellphone identification and location information.  Some complaints filed with FCC alleged that cell-site simulators disrupt consumers’ cellular service, can potentially interfere with emergency communications including 911 calls and are used more frequently in minority neighborhoods, the senators said Thursday in a letter to FCC Chairman Tom Wheeler.  The lawmakers added that reports also claimed that law enforcement agencies do not have required licenses to operate Stingray devices over wireless spectrum. Senators Urge FCC to Investigate Cellphone Surveillance Tech Interference Complaints