I'm kind of surprised they are even still a thing in the military. They are very antiquated in a modern battlefield scenario- they can't even be mounted or used on a rifle or carbine with a grenade launcher attached, and the M4 variants in SOF won't even accept one- one upper has a 10" barrel, the other has a full length rail with a low profile gas block, so it doesn't even have a bayonet lug. I didn't see a single one carried by a single soldier anywhere during GWOT. My personal experiences with the bayonet was in basic training running around yelling and stabbing things on some type of obstacle course with foam enemy dummies all over the place, followed by graduation from basic training with rifle and fixed bayonet. They COULD be a very effective tool in the hands of the national guard for civil unrest situations, like a border crossing being overran. Unfortunately, public opinion has a real problem with any use of force employed as a response to people acting like savages.