This is another one of those, "My peer reviewed study beats your peer reviewed study". Here a recent one that quotes a study that says it's better all around to have disabled students mainstreamed...
http://psychcentral.com/news/2014/07...ing/73007.html
But that's not even the point. Obviously it comes down to the teachers and the curriculum. And even more so, I wouldn't want to be in a position where I have to explain to my kid why h/she can't go to a certain school or attend a certain class. The answers are a) you're too stupid to deal with anything less than a full complement of equals. Or b) disabled kids make you stupid. Just not a convesation I'm interested in having.
What I love the most about this, the kids involved are once again two steps ahead of the adults...
http://wpri.com/2015/04/01/n-provide...or-kansas-boy/
The kid has 10k letters.