BETHLEHEM, Pa. - As Lehigh University students prepared for final exams this week, they found themselves grappling with the news that the sophomore class president had been arrested for allegedly robbing a bank. "I didn't believe it when I first heard it," Kathryn Susman, an 18- year-old freshman engineering student from Hereford, Md., said Monday. The robbery occurred Friday afternoon. Authorities said Greg Hogan, 19, handed a note to a teller at a Wachovia Bank branch, saying he had a gun and wanted money. Hogan, the son of a Baptist minister, was picked up at his fraternity house later that...