Committing, assisting, sanctioning or even applauding (2) terrorist acts means you can't object when the same tactics are used against you. No matter how evil the target and no matter how virtuous (hah!) those commiting it think they are, tertorism and murder are always wrong. Mughniyeh embodied evil to the US government and the Israeli government. There are people who hate them just as vehemently. If assasinating Mughniyeh was okay, then terrorist action aimed at Americans or Israelis is okay. Live by the sword, die by the sword. Tragically, the sword smites more of the innocent than the guilty.
It would have been better to see him punished for his crimes, rather than blissfully annihilated in a micro-second. But it is undeniable that "the world is a better place without this man in it" (3). As will also be the case when someone finally turns off Ariel Sharon's life support machine.
1 - "U.S. Official: World 'Better Place' With Death of Hezbollah Figure," unattributed AP article, 13th of February, 2008.
Reproduced on Fox.news. (http://www.foxnews.com/story/0,2933,330525,00.html)
2 - ibid.
3 - ibid.