I wish I'd written it, but I didn't. Here's the link:
http://ricks.foreignpolicy.com/...
The writer, a Marine in a scout-sniper unit, says something I have heard before from a variety of different sources, but it is an observation I think is worth repeating: a professional military, and the fetishization thereof of its members, encourages a lot of dangerous thinking and widens a perilous cultural gap.