May 18, 2015 11:33 am Amtrak's Back on Track Amtrak trains moved once again Monday along the Northeast Corridor Line between Philadelphia and New York. US & World Videos 2:05 Wednesday's Child: Gianna 10:45 ‘Giant Heart' procedure: The Lineup 0:16 Philadelphia police department combines 2 police districts. This is why 0:36 Franklin Institute's Giant Heart to close for months. Here's what will come next 0:16 Philly's Rocky statue getting a spring cleaning