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Yesterday, Southland Concrete workers rallied outside the United Forensics Laboratory construction site—complete with bullhorn-wielding councilmember Phil Mendelson!—in the first high-profile protest of the company’s treatment of workers. Tomorrow, the Reverend Al Sharpton will give a speech at the Martin Luther King Jr. Memorial site to commemorate the 47th anniversary of the civil rights leader’s “I Have a Dream Speech.” The United Construction Workers are calling on Sharpton to holler at Southland to make the company acknowledge the workers’ right to organize.

Video courtesy of Michael Blain.