The Chris Hedges speech continues to make ripples. The conservatives who feel the need to be consistent have mostly been disapproving of those who shouted him down, remembering the situation in the 1980s when the left did that to virtually any speaker of the right.
That's a legitimate point, but suppose in 1999 a Republican speaker had stood up at a graduation, and said "Today I want to talk to you about why Bill Clinton should have been convicted in the impeachment trial", is there any doubt that he would have been met with a chorus of boos? Is there any doubt that his mike would have been turned off well before he got to, "Bill Clinton raped Juanita Broddrick; this we know."
And I would say that's totally appropriate, as was the reaction to Hedges.