Vivvo CMS 4.1 PRI: Public Radio International http://www.pri.org/ ©2010 Spoonlabs d.o.o. PRI: Public Radio International http://www.pri.org/files.php?file=rss_682409203.gif http://www.pri.org/ Global markets tumble, Obama addresses S&P downgrade http://www.pri.org/stories/politics-society/global-markets-tumble-obama-tries-to-calm-worry-5296.html Politics and Society Mon, 08 Aug 2011 17:00:00 -0500 With every major stock index in Europe and the US down at mid-day, President Obama went on air to assure the world, 'our credit is triple-A.' PRI: Public Radio International