Correct me if im wrong, but could'nt the Predators at the end of AVP see the alien embryo within the dead "scar" predator. If you notice, earlier in the AVP movie, just before Lex shoots Sebastian... the "scar" predator scans Sebastian's body and sees the alien baby moving inside him. Yeah, I'm aware that the elder predator wasn't wearing his facemask at the end, but those who picked "scar" up and placed him on the gurney... they were wearing there's. I'm quite sure the Predators could have scanned and seen "scar" was infected, just like they can scan through human bodies? Again, another ball dropped with Paul Anderson... that guy should be barred from making movies!