About 1:12 into video from link at MentalRecession:

The vetting of Obama, something that should have been done in 2008, continues. This time, with video of what may be a young Michelle Obama taking part in a protest on behalf of race-extremist, Professor Derrick Bell. The purpose of the Occupy-like sit-in is in advocating the very definition of racism – they were demanding that the Harvard Law School hire professors based on race.
Via Pajamas Media (h/t Twitchy):

Read more http://mentalrecession.blogspot.com/2012/03/video-of-michelle-obama-as-young.html