Aaron Moselle reports on the civil trial stemming from 2013’s deadly building collapse in Center City Philadelphia. Dave Heller speaks with Kathleen Hall Jamieson of the Annenberg Public Policy Center on Americans’ decline in their knowledge of the branches of the U.S. government. StateImpact Pennsylvania’s Susan Phillips reports on which candidates are receiving the most financial support from the oil and gas drilling industries. Laura Benshoff looks at the shortage of substitute teachers in many of Pennsylvania’s school districts. Finally, Howard Shapiro reviews The Elementary Spacetime Show, a production at the Philly Fringe Festival from Howard Shapiro.