Franco Trivigno, associate professor of philosophy at Marquette University, talks to students at the Jesuit-run university in Milwaukee in late April. A plan to reduce student debt, announced by President Barack Obama Aug. 22, aims to rank colleges by access, affordability, graduation rates and earnings and then link student aid to these ratings. (CNS photo/courtesy Marquette University) (Sept. 6, 2013) See WASHINGTON LETTER Sept. 6, 2013.