In going through the article that Hanna posted the link to, the following caught my attention:
Rotary International officials said they couldn't remember any incident in the exchange program's history that matched the level of violence inflicted on the group of foreign students Saturday night. They called it a "tragic irony" that such a thing could happen to students who come to this country to foster world understanding and peace.
"I can't recall anything comparable to this at all," said Wayne Hearn, a spokesman for Rotary International North America. "The kids look at this as an experience of a lifetime. Something like this is an aberration."
Most leftists never learn. This is not an aberration.