Police department around the country are going back to the 9mm.
Police departments utilize much better ammuntion than the military does. The military needs to replace the M9 with a modern striker fired 9mm like a Glock 17, full size M&P, or the new H&K VP9. Then, issue something 124 grain Gold Dots for combat and relegate the current 124 grain NATO FMJ load to training.
If they're sticking with FMJ ammo, then go back to the .45 in a modern platform.
