The Army's top officer says security at military recruiting and reserve centers will be reviewed, but it's too early to say whether the facilities should have security guards or other increased protection.
Gen. Ray Odierno, chief of staff of the Army, tells reporters that arming troops in those offices could cause more problems than it might solve.
Odierno said there are legal issues involved in allowing troops at the centers to carry guns. He says those forces will always be a bit vulnerable because the centers need to be open and accessible to the public.
A notice went out Thursday to Army locations reminding them of protection measures.
A gunman shot and killed four Marines at a Chattanooga recruiting center Thursday. A sailor and another Marine were injured.