Even though the glue is a new formula, the idea is forty years old. They were using (essentially) the same **** in 'nam to close chest wounds and other serious bleedouts. Problem was there could be some, erm, skin irritation involved (I've heard some pretty bad stories from medics in 'nam about the removal of the compound once the injured man was taking to a hospital), as well as the fact that the FDA hadn't actually approved it for use (why let a little thing like FDA approval stand in your way?!).

I guess when you have guys laying on the jungle floor spilling gallons of blood on the ground from a massive chest wound you don't get the luxury of worrying about skin irritation and FDA approval. Makes a good amount of sense to me.