1 in 150 kids have autism in some form?

I've been hearing about this quite a bit recently -- one in 150 kids in America has some form of Autism, diagnosed or not. If those numbers are true (not sure), then we've got some severe issues to look at here.

Like -- why are so many kids being affected by this form of mental functioning? As always, the usual culprits come up -- environmental toxins to the junk many kids eat to the condition of their parents insofar as genetic culpability and so on.

But really -- one in 150? That is scary, very scary. This, of course, includes all forms of autism, from mild to severe to Asperger's Symdrome even.