Lady Gaga and Diane Warren find healing power in 'Til It Happens to You'

Lady Gaga and Diane Warren huddled over a plate of French fries in a vacant hotel banquet room, relishing every bite. They were pumped up — and hungry. Their song "Til It Happens to You" from the 2015 campus rape documentary "The Hunting Ground" is up for a Grammy on Monday and an Oscar at the...