Illinois General Assembly may have to approve sale, creating a new roadblock.
How much is Congress willing to pay for the Illinois prison?
GOP rival contends program hides overcrowding problem to abet sale of prison.
Plan to halt Gitmo-to-Yemen transfers a final snag prior to recommendation.
But prison unlikely to be ready until 2011.
Critics say they woke up one morning and were told "Gitmo was moving to Illinois," but supporters want the economic boost.
Attorney General's legal opinion says only public hearings are required for sale of mostly empty prison.
The governor has a way with words.
Lawmakers want to get the most $$$ for the Thomson prison.
Illinois GOP -- and Quinn's opponent Dan Hynes -- voice their displeasure.