NPR's Audie Cornish talks to David Meyer, a sociology professor at the University of California, Irvine, about the historical use of the sit-in and its origins as a form of political expression. … David Meyer: “The sit-in grew out of the sit-down strike, which came out of the labor movement.”

For the full story, please visit http://www.npr.org/2016/06/23/483275233/the-long-history-of-sit-ins-as-a-form-of-political-expression?utm_medium=RSS&utm_campaign=politics.