http://graphics8.nytimes.com/images/misc/nytlogo152x23.gifBy . With affirmative action under attack and economic mobility feared to be stagnating, top colleges profess a growing commitment to recruiting poor students. But a comparison of low-income enrollment shows wide disparities among the most competitive private colleges. A student at Vassar, for example, is three times as likely to receive a need-based Pell Grant as one at Washington University in St. Louis. “It’s a question of how serious you are about it,” said Catharine Bond Hill, the president of Vassar. She said of colleges with multibillion-dollar endowments and numerous tax exemptions that recruit few poor students, “Shame on you.” Read more...