Anyone knows any nice documentaries by national
geographic/ discovery channel / imax or others that shows, for
example, behind the scene and the process of how a recruit was
trained to be a police or secret agent or soldier?
For example, i watched this documentary "On board air force one"
and "on board marine one", they showed what they are supposed to do
in event of emergency to protect the president of USA, and also
some training they required to pass.
Any recommendation?