defense against repayment

Banks aren't the only "too big to fail" companies that put taxpayers at risk.
The administration's "aggressive action" to root out wrongdoing may be little more than a branding effort.
The Federal Trade Commission's lawsuit suggests as many as 300,000 students were defrauded. The FTC's chairwoman said the figure is much smaller.
The Federal Trade Commission said DeVry gave false career and earnings numbers to prospective students.
Student debtors might have faced a paperwork nightmare had the Massachusetts lawmaker not stepped in.