Why this Israel/Hizbollah war now?

And why was Condi so sure, from the first day, that this war was so important in briging on the "birth pangs" of a new middle east?

Informed Comment:

The wholesale destruction of all of Lebanon by Israel and the US Pentagon does not make any sense. Why bomb roads, bridges, ports, fuel depots in Sunni and Christian areas that have nothing to do with Shiite Hizbullah in the deep south? And, why was Hizbullah's rocket capability so crucial that it provoked Israel to this orgy of destruction? Most of the rockets were small katyushas with limited range and were highly inaccurate. They were an annoyance in the Occupied Golan Heights, especially the Lebanese-owned Shebaa Farms area. Hizbullah had killed 6 Israeli civilians since 2000. For this you would destroy a whole country?

It doesn't make any sense.

Moreover, the Lebanese government elected last year was pro-American! Why risk causing it to fall by hitting the whole country so hard?