September 13, 2010 6:14 pm NBC10 @ ISSUE: Teachers & Schools — Teacher Unions Union leaders from PSEA and NJEA measure the successes and challenges for local school districts. US & World Videos 3:22 Biden, Harris make a rare joint campaign appearance together in Philadelphia. Here's why 31:15 Former Philly councilmember Maria Quiñones-Sánchez talks Kensington's future 0:14 Pro-Palestinian protesters clear out Drexel encampment 3:07 Pro-Palestinian encampment at Drexel enters night 3 as school decides to return to normal operations 1:53 Penn beefed up security for its commencement following pro-Palestinian protest where 19 were arrested