House Armed Services Committee Chairman Mac Thornberry (R-TX) is frustrated that the Pentagon's effort to elevate U.S. Cyber Command to its own unified command has taken so long. During a June 22 committee hearing , Thornberry asked Acting Assistant Defense Secretary for Homeland Defense and Global Security Thomas Atkin whether now was the time -- nearly six years after CYBERCOM achieved full operational capability -- for it to stand on its own as a combatant command. Atkin responded that the...