I'm considering filing a lawsuit against the TSA for a severe violation of their protocol which resulted in bodily harm and significant injury to myself.

I've never sued anyone or any organization before (let alone a government agency) and this is completely uncharted territory for me. Is there a precedent set? Is there a specialized counsel or practice I should reach out to?

I don't want to post the details of the experience in a public setting due to my (possible) pending litigation, but any advice or links would be greatly appreciated.

Thanks in advance.