Has anyone else had this happen to them? I had a D-List celebrity steal one and had a lawyer make them pay up but the US government is a bit of a different beast. I’ve had Cuba and Russia steal it too. I’m not sure it’s worth kicking that hornet nest.
I should probably copyright register it.
As someone else suggested, send a DMCA takedown notice. The reason the site says that nothing on it is protected by copyright is because the government can’t own copyrights.