Take my word for it, don't get a job for the Federal Government. If you work for Them, get out. If you get injured, take it to your private insurance; do not file a workers' compensation claim. If you do, they think they own you.
The people that work for the workers' compensation division of the Department of Labor are soulless creatures that are well trained in making their claimants suffer. They are experts when it comes to ruining lives and making people miserable.