@Tom L. Perhaps I am being touchy at your word of caution, if so I apologize. But I would say his works have received more comments about being accurate and forthright than them being known as being criticized over the facts.
I would be interested in what you are using as your source material for the criticism on LTC Grossmans work on the desensitization of young boys to violence through video games (or tv or media). I have not heard of any criticisms on this except from talking heads on news outlets that are giving opinions and not contrary evidence.
Before I got out of the Army, LTC Grossman was an instructor of mine at an Officers course so even before he published On Killing, I was able to digest he concepts. I read On Killing and Stop Teaching Kids to Kill (the one dealing with video games.) I sat through a conference he gave on the first book (On Killing). I have heard him speak on the subject of kids and how they process stimuli for several hours on talk radio.
Even though I have left a comment on this thread, I would say this is not the place to discuss these things as his works that I have read thus far do not deal with preparation for natural disasters or mental training for a survival situation in a non-combat environment.
I do think I will respond to your comments, if you so choose to. Not b/c I am rude or as a sign of disrespect but I don't want this thread to become a conversation on the mental aspects of killing or the desensitization of our youth, I would rather see a long thread on Laurence Gonzales book Deep Survival instead. I respect your concern over his work and I politely disagree that LTC. Grossmans has been legitimately criticized.
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Don't just survive. Thrive.