States are at the center of the unemployment crisis, and that's because many have serious debt problems, impeding their ability to keep workers employed.

But just how bad are those debt problems? It could drive some states to default if conditions get worse or force a federal government bailout.

Here's CMA Datavision's list of the worst state risks, ranked by cumulative probability of default (CPD). That default risk is measured through fluctuations in the state's CDS rating, and the height of that rating. The spread of each 10-year CDS is also listed as well as the implied credit rating of the state.