The devastation caused by Hurricane Isaac on the gulf coast of the United States is becoming clear now that it has weakened to a tropical depression.<br /><br />The weather system was the first major test of New Orleans' flood defences since the fatal devastation of Katrina exactly seven years earlier.<br /><br />Many areas were still inundated despite the barriers and many people had to be evacuated.<br /><br />...<br />http://www.euronews.net/
