I forgot to mention that he took Brazilian citizenship, and did something else which I was never told to cause his U.S. citizenship to be revoked. I was not involved with his case, but with that of his son.
Whatever the father did, caused his son to be unable to get an NSA clearance until his father regained his citizenship. The son was hired as a senior software engineer. He was put to work in the mailroom until.......in 1990, he was the highest paid mailroom clerk in GTE Corp.
Ah, ok. That makes sense ;^)