IMO, Danny Greene was nothing more than an Irish piece of shit who got what was coming to him. Like Whitey Bulger, like Mickey Spillane, like Jimmy Coonan and like Mickey Featherstone. Greene was certainly more brazen than the aforementioned names and flaunted his heritage more than anybody I ever heard of. Of course he was an informant, like Whitey. The only way for the Irish to truly compete with the Italian mob would have been to form partnerships with them and subsequently inform on them to get ahead.
I know Ronnie Carabbia personally, as he is a close family friend and his son is business partners with my cousin in Sky King Fireworks. I've spent holidays with him since his release from prison and have spent time with him in Sarasota during the winters. For those who don't know, Ronnie Carabbia was the guy who detonated the car bomb that blew Danny Greene into kingdom come and I've always wanted to ask him how he felt after finally popping that bastard, but I didn't want to step out of line either. Carabbia did 20+ years in the can and kept his mouth shut, then was paroled back in 2002. Here are a few articles:
http://www.vindy.com/news/2002/sep/24/poland-carabbia-is-let-out-of-prison/http://www.enquirer.com/editions/2002/05/12/loc_youngstown_mob_boss.html