VENICE, La. -  Response crews dot  the Gulf of Mexico, trying to keep contamination from the south, the oil, from reaching sensitive marshland along the Louisiana coast. At the same time, Louisiana law enforcers say they are working to keep contamination from the north, scam artists who follow a disaster, from reaching coastal communities now hurting because of the BP oil leak.  “Anytime there’s …

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AG warns of scam artists trying to profit from spill