Apollo Group's (NMS:APOL) University of Phoenix, Corinthian Colleges' (NMS:COCO) Everest College, Washington Post Co.'s (NYSE: - News) Kaplan College and Education Management's (NMS:EDMC) Argosy University enrolled students in programs they can't afford, exaggerated potential earnings and urged some to lie on financial forms, said the Gov't Accountability Office. Senate Education Committee Chairman Tom Harkin pledged to curb abuse. The GAO made the charges Tues. but hadn't named specific for-profits. School stocks fell a bit.