mr. mccool. my son has been -- it's been suggested by a couple of physicians that he has a very mild form of autism, asperger, but there's other physicians who say, no, they're off the mark. how well defined are we and how in tune are we with diagnosis today of autism and the elements of autism. do you understand my question? >> yes. >> please. >> autism is a diagnose where there's no medical test or blood test, so it's done by observation and sort of looking at the different categories. obviously, autism impacts that part of the brain that impacts speech and other communication behavior, those kinds of things. it doesn't impact iq, so i think obviously the expansion of the definition to include aspergers has impacted the numbers. i think what we see is if someone is diagnosed or suspected after having aspergers, the thing to do is to really look at their communication and is their communication system in tact? is it appropriate? that seems to be the most singular indicator, and because children,