My youngest was a Sgt with the 82n Airborne. He did two combat tours in Iraq. I couldn't bring myself to watch the news, and when he called my cell phone the world stopped until we finished our conversation. It was the same when he did a combat tour in Afghanistan. In my life time I have seen a lot of killing, and I could not shut the mental images of my own experiences out.
I truly know exactly how you feel Land_Owner. My son is now home, I hope for good. I have always thought, that Iraq will always be a dangerous place, and my son thinks so too. Most Americans just don't get the culture.
I pray for your son, and everyone else's son to come home safe.