April 28, 2010 1:12 pm World Dance Day Performers Meredith Klein and Andres Amarilla dance into the studio and show Bill and Aditi the steps to the Argentine Tango. They will be performing at World Dance Day 2010. US & World Videos 6:33 Family affair: Former Eagle and new Eagle Jeremiah Trotter and Jeremiah Trotter Jr. speak out 0:20 Teen girl shot in Southwest Philly, suspect in custody 0:27 FBI inspects American Airlines plane at PHL after bomb threat 1:40 Penn officials urging pro-Palestinian protesters to pack up and leave campus 2:17 Clear the Shelters: Meet Tails