Gerald Dickinson

Mel Evans / AP

Pennsylvania’s primary doesn’t take place until late April, but the election cycle is officially underway in Allegheny County: Yesterday marked the deadline for announcing an interest in seeking the endorsement of the Allegheny County Democratic Committee. There were few surprises on the list of candidates vying for the approval of party insiders. But there were some notable omissions — and, as always, some criticism that endorsement filing fees themselves are anti-democratic.

Carnegie Mellon University

On today's program: Social science and artificial intelligence are combining to fight disinformation on social media; how volunteerism creates community in the South Side; the Democratic ticket for the 18th Congressional district takes on gun control; and PWSA prepares to bring the Highland Park reservoir back online.