In Chattanooga, a veteran laments: "None of us are safe, are we?"

http://link.brightcove.com/services/player/bcpid1778770285001?bctid=4359895265001

Mourners continue to gather at one of the sites in Chattanooga where an attacker opened fire, killing at least four US Marines.

Diondra Pointer, a U.S. Army veteran, came Friday morning to plant flags near the military recruitment station where some of the shootings took place.