We could not get the FBI to arrest a guy who threatened to blow up my building and shoot whoever survived the explosion. Turns out that there is not a lot of interest in federal law enforcement in locking up crazy people. Their opinion is that unless they are a "credible threat" there is no use in going after them.
I am sure that MB would like to have his retarded sea cow locked up, but the feds don't really give a fuck. They have real problems to deal with, and can roll their eyes the same as us. You just have to hope that you don't get a really junior investigator who is having his first "retarded sea cow" encounter.