- April 20 marks 5 years since the BP oil spill
- At the time, there were dire predictions for the environment
- Today, it is still too soon to know the long-term impact
(CNN)On April 20, 2010, a final cement seal of an oil well in the Gulf of Mexico failed, causing what has been called the worst environmental disaster in U.S. history and taking the lives of 11 rig workers.
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