For John Lott, Wednesday's mass shooting at Fort Hood was a test of personal beliefs that struck uncomfortably close to home.
His son is serving at Fort Hood and was close enough to the activity to hear shots and screaming.
"Even though my son just got back from a tour of duty in Afghanistan, where he had his gun with him all the time, he isn't able to have his gun with him on the base," Lott says. "We somehow don't trust people to carry a gun on base here."
Lott is not alone in this debate. With the third mass shooting at a military facility in five years, some members of Congress want to re-examine the policies that leave soldiers unarmed on base.