It's neither. When was the last time you heard of an informant being whacked? This isn't the 70s or even the 80s, no made guy from any mafia family, is going to risk his life or put his ass on the line and risk life in prison for some stool pigeon, whose shunned from those living that life anyways. Unless it's Canada, this stuff simply isn't going to happen anymore.
The last was Mario Riccobene that left the witsec and turn back to philly and was whacked in 1993.
