That's POSSIBLE. Nucky is down in Cuba getting ready for the end of Prohibition (that's why he is "in" with the senator - he's trying to get inside information about Prohibition ending). Nucky runs into Meyer Lansky who tells Nucky that he was married. (This was true in real life - he married shortly after Arnold Rothstein was killed, and according to the show that was the last time Nucky saw Meyer - at Rothstein's funeral). BUT, Nucky saw Meyer and his wife talking and later, after the attempt on Nucky's life he stopped to talk to Meyer's "wife" only to find out she was a Cuban prostitute. SOMETHING is up with that and Nucky suspects it.

I have to watch the show again. There was a statement made about some group in Cuba that was attacking people (reminded me a bit of Godfather II when they were talking about the rebels). THey were some sort of politically motivated anarchists and that MIGHT explain why Nucky's bodyguard chopped of the assassins ear.