Disability and student loans?

[fayanora]

My roommate is under the impression that if you owe student loans, the student loans people can legally take all your paycheck, all your disability if you're on it, all your tax returns, and can even legally take all the tax returns of your spouse if you get married, and so she has decided not to bother trying to apply for disability because of this. I don't know whether to believe it or not, because that sounds not only highly illegal, but extremely unethical. I doubt it's legal to take someone's entire income for a debt they owe. (USA)

But if it is true, that is a MASSIVE accessibility fail.