I was evaluating safety and security constantly.

After coming home from a deployment, a lot had changed

and I didn't even realize it.

I kind of saw...I look back at myself as a frog in water.

The temperature was going up, and I never, never realized it.

I was evaluating safety and security constantly.

I think it's just the nature of, you know, the job.

So in retrospect,

there are a number of things, triggers,

the sound of a gun going off

or fireworks

or a car door slamming

or even seeing a bag of garbage

or a carcass along the side of the road-

those are all things, for instance, that are triggers.