March 21, 2011 7:06 pm Secrets of The Silk Road Justin Pizzi visits the Penn Museum to take a journey back in time to explore the Tarim Basin in Western China. US & World Videos 1:58 ‘Violent protest is not protected': Pres. Biden addresses protests on college campuses 3:25 Jewish students, staff petition to remove pro-Palestinian encampment off UPenn's campus 2:32 Counter-protestors call for end to Pro-Palestine encampment at Penn 11:13 Not this time Knicks fans: The Lineup 0:41 Remains of child found in duffel bag in West Philadelphia identified as missing boy