But I think it will be impossible politically to obtain conviction and appropriate punishment. Just hold the trial in New York city, or the Virgina suburbs of DC. You will have to find a hanging judge though, since I believe in the federal system the judge determines the sentence. Might also be a good idea to hold it in the 5th District. Texans won't look any more kindly on him than New Yorkers or Virginians, and the 5th Circuit is mostly Texas judges, and you know Texas judges aren't known for being anti death penalty. The Supreme Court won't touch the case with a ten foot pole, "Cert Denied!".
Let me enlighten you from personal experience with the 5th circuit court. They are the best liberal judges that money can buy. If little Johnny goes up before them he will end up being turned loose and set up to live the good life on American soil like another well known traitor. Hanoi Jane never paid for her crimes against America. She fit the description of a traitor. Many soldiers never returned. But she has lived a life of extreme wealth while American soldiers who lived to return to this country live on the streets and eat from garbage cans.