[kahljorn]

First off, Minority Report didn't have anything to do with Genes, minority report was the movie with the crackbabies who could see the future.
Secondly, believe it or not, not all science is going to remain the same forever. I read this in an article somewhere, and I'm pretty sure it had to do with certain genes that were likely to make people more physically aggressive.
Not everybody in a "Mommy didn't hug me enough" situation will grow up and be a Serial Killer.
That was the point of it. Detect who has the genes that could make them capable of it, then make sure they get alot of hugs.