The business of higher education is booming. It's a $400 billion industry fueled by taxpayer money. But what are students getting out of the deal? Critics say a worthless degree and a mountain of debt. Investors insist they're innovators, widening ac... (more)cess to education. FRONTLINE follows the money to uncover how Wall Street and a new breed of for-profit universities are transforming the way we think about college in America.