They used to think that Autism and Asperger's were different.  Then they decided they were the same disease, only different levels of the disease.  Now I think they are going back to thinking they are different.  It seems the experts are still out on this one, and haven't decided for sure.

Are there a bunch of different conditions that fall under autism, for example Asperger's Syndrome, that have different levels of disability?  Or is it something separate that just has a range from mild to severe?