December 10, 2014 5:30 pm Challenge Hero: Capt. Katherine I. Portillo Air Force Capt. Katherine I. Portillo is this week’s Challenge Hero. (Published Wednesday, Dec. 10, 2014) US & World Videos 3:14 USC prepares for graduation after encampment removal 1:57 Hazmat team responds after two people are found dead in Northridge 1:04 Homeboy Industries founder Father Gregory Boyle receives nation's highest honor 5:46 NewsConference: Why the political silence during the campus chaos? 5:33 NewsConference: Professors protecting their students