Mission of Mercy

RIchard Drew / AP

On today's program: A free dental clinic at PPG Paints Arena will serve more than 1,000 patients for free; how Sam DeMarco hopes to chart his course as Allegheny County GOP chair; get to know the first African-American woman to graduate from Pitt's engineering program; a peek into the future for autonomous vehicles in Pittsburgh; and what immigrants and allies can do following reports of ICE activity in Pittsburgh.

Noah Brode / 90.5 WESA

Patients of all stripes leaned back in rows of dental chairs on the main floor of the David L. Lawrence Convention Center early Friday for free procedures ranging from walk-in cleanings to root canals and extractions.