Interesting story. So Lord Haw Haw was of split allegiances. Born in the U.S., and still was a subject to the British crown where the Brits still hanged him for treason from the gallows. This fits nicely with Kawikita V. United States, 1952. Kawikita had spit allegiances or duel citizenship and who was also found of treason against the United States.
There is an object lesson here about these two court cases concerning Obama.