[Troubleshooter]

I think that the box is a good idea.

Something similar could be used by the military overall.

For us, submariners, combat is impersonal and not too difficult the adjust too. Stress is the only real concern.

They could train all of the personel who needed it in how to use it and then when they are done, all they have to do is readjust the criteria for who goes in the box, instead of having to readjust them from the much larger issue of killing in general.

It also works in the long term in case you have to recall them. A little box adjustment and back in the field they go.