This article from the New York Times Sunday Magazine is long but worth reading all the way through because it is thorough and balanced.
I found this quote especially refreshing in its honesty:
“I’ve been studying autistic kids for 40 years,” [clinical neuropsychologist Deborah] Fein says, “and I’m pretty good at what I do. But I can’t predict who is going to get better and who’s not based on what they look like when I first see them. In fact, I not only can’t predict who is going to turn out with optimal outcome, but I can’t even predict who will have high-functioning autism and who will be low-functioning. There’s so much we still don’t understand.”
Read the full article here: http://www.nytimes.com/2014/