Mathews: Make em laugh​"We'd love it if the world turned vegan tomorrow," Dan Mathews says breathlessly. Mathews is senior vice president of People for the Ethical Treatment of Animals (PETA), the controversial animal rights group founded by Ingrid Newkirk in 1980. When I spoke to Mathews by phone Friday, he had to raise his voice above the honking of New York cabs and the belch of passing trucks. But the background mayhem couldn't faze a guy who thinks nothing of dressing up as the pope to cr