FILE – In this Nov 24, 2009 file photo, a University of Phoenix billboard is shown in Chandler, Ariz. Two senators say for-profit colleges are using too much taxpayer money to recruit students. Sen. Tom Harkin, D-Iowa, and Sn. Kay Hagan, D-N.C., introduced a bill Wednesday to prohibit colleges of all kinds from using dollars from federal student assistance programs to pay for advertising. (AP Photo/Matt York, File)