New Orleans-based university Tulane has apologized after sending out acceptance emails to 130 applicants that did not get into the school. The email was followed by a retraction email with the subject line, "We Messed Up," explaining the mistake. Tulane is not the first university to make this mistake. M.I.T., Carnegie Mellon, Vassar, U.C.L.A., Fordham, Johns Hopkins and the University at Buffalo have all sent the same kind of acceptance message mistakenly.