Charles Krauthammer has a very clear wish list regarding Lebanon at Real Clear Politics. The situation might resolve itself in the manner which he suggests, but I wouldn't bet on it. Even if it does, how long would a multinational force remain in place and who will foot the bill?
I've been somewhat hopeful that Israel would be able to destroy a sufficient amount of Hezbollah infrastructure (and kill a fair number of terrorists) before the hand wringers are able to slow them down but Hezbollah seems to have done a surprisingly good job in making their zone in Lebanon very dangerous. So dangerous that Israel is examining its options very closely and continuing with reconnaissance in force rather than invasion.
Will the hard strikes in Gaza today increase the yammering of the hand wringers to the point where the US intervenes before Israel invades?
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