—l took your question to refer to local drugs of abuse and we do see opiates in combat areas or Afghanistan. We see methamphetamines mailed over there. In Somalia it was khat.
We don't know a lot about the interaction with drugs of abuse and mefloquine, but based on what we do know we would expect their effects on the liver, the effects on the kidney, the effects on the brain probably have a synergistic, negative effect on the brain.
Sergeant Bales apparently was on steroids and alcohol, and my hypothesis is whether his use of mefloquine was recent or chronic or long term. We know he was on it. It's that those drugs affected his already impaired brain in a very dangerous way.