@CNN: Defense Secretary James Mattis is expected Friday to order a tightening of security policy governing military and civilian personnel bringing cellphones into classified workspaces in the Pentagon, according to two US defense officials https://t.co/JssharSbYR https://t.co/yjAfHgzJ4A

@CNN: Defense Secretary James Mattis is expected Friday to order a tightening of security policy governing military and civilian personnel bringing cellphones into classified workspaces in the Pentagon, according to two US defense officials https://t.co/JssharSbYR https://t.co/yjAfHgzJ4A