How Much Will It Matter If Student Loan Interest Rates Double?

The bell has been rung in the next round in the fight over student loan interest rates, and borrowers could take it on the chin this time. On July 1, if Congress does nothing, the interest rate on federal subsidized Stafford student loans will double from 3.4% to 6.8%. "It's not the end of the economy as we know it," says Mark Kantrowitz, publisher of student-lending websites Fastweb.com and FinAid.org. He's right, but that doesn't mean it won't really stink, especially for the poorest college s...