<<Is the bombing of the bus tolerable or justified?>>
It better be. We must have bombed a whole lot of buses in Germany and Japan.
I'm convinced that if there is going to be a peaceful solution in the Middle East, the first thing that has to go is this hypocritical and short-sighted condemnation of the other guy as "evil" and the general assumption that our side is "good" or at least not as evil as the other guy.
People are people, Arabs are no more intrinsically evil than Americans, Muslims no more intrinsically evil than Jews. If the Arabs are blowing up buses, realize that this is not done casually, for laughs - - there is a lot of rage and bitterness that went into the making of that action. Try to understand the sources. Not the history of "the Arabs" or "the Palestinians" or "the Jews," but the personal histories of the guys who bombed the bus. What THEY went through in their lifetimes before they became suicide bombers or guerrilla fighters.
All too often, the only insights into their minds are provided to us by people with an axe to grind, mostly Israelis or Zionists, "experts," to be sure, with all the doctorates and credentials necessary, but they are whores. Try to see from the Palestinians themselves what THEIR side of it is, and then decide for yourself who has the more credible explanation. But the Zionists have monopolized the narrative, down to the provision of explanations from "ex" guerrilla fighters, "ex" jihadis, etc. How many people in the U.S. have even heard the other side explained by its own people is probably less than 5%.