An oil slick C is pictured off the Louisiana coast in this Terra satellite image taken on April 29 2010 and obtained April 30 2010 The huge spreading oil spill in the Gulf of Mexico washed up to coastal Louisiana wildlife and seafood areas on Friday and the U S government and military struggled to avert what could become one of the nation s worst ecological disasters REUTERS NASA Handout An oil slick C is pictured off the Louisiana coast in this Terra satellite image taken on April 29 2010 and obtained April 30 2010 The huge spreading oil spill in the Gulf of Mexico washed up to coastal Louisiana wildlife and seafood areas on Friday and the U S government and military struggled to avert what could become one of the nation s worst ecological disasters REUTERS NASA Handout