In he words of the dearest departed Rodney King, "Can't We All Just Get Along?" I think in the recent years, we've learned that every murder is a HUGE liability. Rats, wiretaps, forensics…. In my opinion it's much easier to just put a guy "on a shelf". I think the only reason to push a button should be because you caught him with a wire. In that instance it's just a matter of self preservation and preservacione della borgata.