I read an old article by Capeci from -89 and it reminded me of this thread. It says that months after the feds warned Gotti, they also went and warned Chin, his two brothers (yes the priest too) and Baldy Dom that the Gambinos were going to assassinate them.

http://articles.philly.com/1989-02-27/news/26153845_1_john-gotti-louis-gigante-genovese-crime

Did this turn out to be untrue? It's interesting if Gotti actually had a plan to kill Chin, but killing the legitimate brother sounds odd...