Katrina in slow motion - Obama's photo op

A comment of a friend just made on Facebook:

Gary Weinstein I was in New Orleans this weekend when Obama visited the Gulf shore. All those people in the white hazmat suits cleaning the beach were brought in right before his arrival and left immediately after! Notice not one was dirty! Another photo op for your president! The people of New Orleans are pissed! Katrina in slow motion is what they are calling this. BP was one of his biggest contributers! Go Figure!