Lebanon was already in political and economic crises before a massive explosion blew up the port of Beirut and killed an estimated 200 people, injured 6000, and damaged the homes of 300,000.  Jeffrey Feltman of the Brookings Institution was American Ambassador to Lebanon from 2004 to 2008.  He ponders how best to re-weave a national basket case, with a dysfunctional government and a dis-connected population.