PRINCETON, N.J. (AP) — Princeton University says any freshman who joins, rushes, or pledges a fraternity or sorority starting this fall will face suspension.The Ivy League school also says any students who solicit the participation of freshmen in Greek organizations will face the same punishment.Princeton had announced last year it would ban first-year students from Greek activities starting in the fall of 2012. But it was left to a committee to decide how to enforce compliance.Princeton President Shirley Tilghman announced this week she had adopted the committee's report. It includes a recommendation that leniency be considered for violators who are "extraordinarily forthcoming."Greek organizations are not recognized by Princeton and do not have houses. Princeton believes frats and sororities promote social exclusiveness and place an excessive emphasis on alcohol.