According to documentary filmmaker Morgan Spurlock, making fun of retarded kids in a speech at a high school assembly is a lesson in the "importance of free speech" for those students.
From AP:
Speaking at Hatboro-Horsham High School's first-ever health fair, Morgan Spurlock joked about the intelligence of McDonald's employees, about "retarded kids in the back wearing helmets" and teachers smoking pot in the balcony.
The special education students in the back row were led by teachers out of the hourlong presentation.
...
"The greatest lesson those kids learned today was the importance of free speech," Spurlock said.
Hey Spurlock, I think you're an asshole. How's that for free speech?
Update: Morgan Spurlock
apologizes. Sort of.