What an informative post. Without the military, I don't believe I would have ever found out on my own what my blood type is, and now you guys are saying that even what was stamped into my tags could have been wrong?
I'm LE now, and I wrote my blood type on my soft armor in black marker, though I didn't think that here in the US where resources and higher level medical facilities should be close at hand first responders would go on something like that either.
I'm also A POS.