Looking back on the Gulf of Mexico oil spill

<div class="meta "><span class="caption-text "> A Brown Pelican sits on the beach at East Grand Terre Island along the Louisiana coast after being drenched in oil from the BP Deepwater Horizon oil spill Thursday, June 3, 2010. ( &#40;AP Photo&#47;Charlie Riedel&#41; )</span></div>
April 20, 2011 3:09:19 AM PDT