There's a couple of things. First of all, before we deploy people, they go through a medical, which includes an evaluation. We don't test people, but they are seen by a family physician who looks at their history, both their medical history and their psychological history. We do that.
Again, when we talk about risk factors for PTSD, let's say that somebody has a history of childhood abuse, they've joined the military, they want to be and are a fully fit military member, and they want to deploy. Again, I think it would be a disservice to them, if they're functioning well, to tell them that because of this childhood abuse we don't think they should deploy. Again, it's important to remember that for those risk factors I talked about, there are many, many other people who have those risk factors but never develop PTSD—