There's sobering news from the Washington Post today on the solvency of Social Security programs for the disabled. http://www.washingtonpost.com/politics/social-security-disability-trust-fund-projected-to-run-out-of-cash-by-2016/2012/05/30/gJQA3AfH1U_story.html
According to the article, these programs will be insolvent by 2016 and there is little appetite in Washington to fix it.
Both federal and Minnesota programs allow for people to create a special needs trusts or supplemental needs trusts to retain assets to pay for things that these programs don't provide. The concerning thought is what happens if these programs can't provide for those who need it in the future.