Those kinds of things have happened see List of riots - Wikipedia and most recently:
* 2008 - Striking dock workers clash with riot police at state-controlled Piraeus (OLP) and Thessaloniki (OLTH) ports [37],Greece, Jan 11+15
* 2008 - Riots in Belgrade on embassy’s of countries recognizing the independence of Kosovo by Serbian nationalists.
* 2008 - Tibetian unrest, Mar. 10 - Present. (Tibet, China)
* 2007-2008 - Food riots in Mexico, India, Peru, Morocco, Egypt, Bangladesh, Pakistan, Italy, Austria, Hungary, Zimbabwe, Mozambique, Namibia, Uzbekistan, Indonesia, Yemen, Guinea, Cameroon, Burkina Faso, Mauritania and Senegal.
* 2008 - Haitian Price riots, Apr. 3, 4 killed/20 wounded., Les Cayes Haiti
* 2008 - Egypt Price and Wage riots, Apr. 6-7, 1 killed, 20 injured, 25 arrested, Mahalla el-Kubra, Egypt
* 2008 - April 21 fans burn police cars in Montreal when Montreal Canadiens defeat Boston Bruins in first round of NHL Playoffs
* 2008 - 1. May riots in Hamburg, Berlin and Nürnberg (Germany) an Manila (Philippines) May Day Violence: Hamburg Sees Worst Rioting in Years - DER SPIEGEL
Those kinds of things can happen in a split second.
It would take just one New Madrid earthquake, which the US could not absorb quickly, for all the pent up hatred to come oozing out.
Hurricane Katrina did not result in civil unrest because the millions of people were absorbed within a few weeks by surrounding states. But the pent up hatred for government, it leadership, and between the political parties was obvious. And the lack of cooperation between the political leadership left 10’s of thousands stranded without water for days at the super bowl.
What evolution these GD have devolved to name calling and prejudice. See Post #1
Only 2 posters out of 17 which I scaled according to manifestation of prejudice have responded to this thread to defend their statements