Looks like the FBI is going back to the 9MM after going to the 40 S&W several years ago. Just shows what they don't really know.
http://www.secondcalldefense.org/self-defense-news/fbi-decides-carry-9mm-should-you?affiliate=20007
http://www.secondcalldefense.org/self-defense-news/fbi-decides-carry-9mm-should-you?affiliate=20007