Northern Arizona University freshman Tyler Dowden, 18, speaks March 13, 2012, during a news conference on Capitol Hill in Washington to announce the collection of more than 130,000 letters to Congress to prevent student loan interest rates from doubling this July. (Associated Press)

Photo by: Manuel Balce Ceneta

Northern Arizona University freshman Tyler Dowden, 18, speaks March 13, 2012, during a news conference on Capitol Hill in Washington to announce the collection of more than 130,000 letters to Congress to prevent student loan interest rates from doubling this July. (Associated Press)