Even after the ordeal of filing for bankruptcy, families like Ohio schoolteachers Devin and Sarah Stang and their four children find a truly clean financial slate remains out of reach - because much of their debt comes from private student loans. Virtually any other kind of consumer debt can be discharged in bankruptcy. But under a 2005 law, private student loans fall under the same nearly-impossible-to-clear category as child support payments and criminal fines. Advocates say changing that law would help those most seriously burdened by student debt, without giving a break to those for whom it's manageable. Yet even as President Barack Obama stumps this week to lower interest rates on federal loans for current college students, the bankruptcy issue has gotten comparatively little attention.