Nanoprobes, not blood. Yep. Khan and nuKhan are identical in every way. How could I possibly have missed that they're twins? Obviously I failed to notice that they're of the same ethnic background! Of course a caucasian guy with an accent that reminds me of Alan Rickman is really somebody who was born in India! Naturally, there are NO actors on the whole damn planet who they could have found to play the part of Khan Noonian Singh without having to mumble something like, "Well, y'see I was adopted..." I never saw this part of Enterprise.