Obama's Katrina Squared?

The Hill reported:

As much as 1 million barrels worth of oil from the BP incident could be tied up in sediments and water that Hurricane Isaac pushed ashore. 

Will Hurricane Isaac and B's Oil Spew interact to deliver Obama's Katrina Squared?  Time and vigilant residents will tell.

Update 9-20-12:  NOLA reported on the Coast Guard's spat with BP over Hurricane Isaac oil from BP's 2010 oil spew.