I suggest a Valium to settle your nerves. "identity and loyalty belong to both " i s an oxymoron, as your own analysis a little ways down hte page clarifies. It only works when it does not matter. Take it from an immigrant with personal knowledge, the US does not in fact take advantage of most "of those who have moved there with their language and their knowledge". Whether that is because the US is inept or for other reasons is more difficult to say. Getting entangled with the Mossad or the CIA is playing in the big leagues. Only fools take that lightly, and it is deffinitely not for amateurs. That said, my deepest condolences for the family of Mr. Zygier. Sh'ma...
French journalists probed on suspicion of blackmailing Moroccan king (Reuters)
from the article: Torn between two passports: Prisoner X and dual citizenship