Exactly. I'm not expecting my letter to actually be read by my congressman, that's not the point. Every US Congressman has staff who get letters like this ever

Exactly. I'm not expecting my letter to actually be read by my congressman, that's not the point. Every US Congressman has staff who get letters like this everyday. They send them to the appropriate agency, and track them. It's the standard process in the US to deal with the bureaucracy when it gets stuck, it is somewhat like the ombudsman role in other systems. There is no guarantee, but there is a chance.