That presents a potential conflict of interest, if true.

I know the reverse is not allowed: any American citizen who becomes an official of a foreign government, or participates in a foreign military, automatically loses his American citizenship. Meir Kahane of blessed memory (victim of Al-Qaeda's first operation in this country, before the first attack on the WTC) found that out when he was elected to the Knesset and had his US citizenship revoked. He was fighting to get it restored when he was assassinated.

Be nice if we could get Chucky's citizenship revoked, but just holding Israeli citizenship without participating in their government isn't enough.