The fact that these teams use 10mm is interesting, but ignores the fact that when facing human opponents at hand gun ranges, shot placement is far more important than caliber or bullet power. Assuming a minimum of 12-13 inches of penetration, unless the round is going very, very rapidly (i.e., in excess of 2000 fps), WHAT the bullet hits is far more important than HOW HARD it hits it.

The typical cop or the typical GI isn't going to shoot a 10mm gun as well as a 9mm gun, and neither the military nor most police forces are likely to offer the levels of training, supplies or time needed to develop the required skills to make them effective with 10mm semi-autos.