BP Blames Photographer For Photoshop Blunder

When BP got caught altering one of the photos on their Gulf response press page, whom did they blame? "A photographer."  

Washington Post: "Scott Dean, a spokesman for BP, said that there was nothing sinister in the photo alteration and provided the original unaltered version. He said that a photographer working for the company had inserted the three images in spots where the video screens were blank."

AP: "He [Dean] says the photographer was showing off his Photoshop skills and there was no ill intent."

The photographer's name shows up on the image's meta data. He's been doing work for the company since at least 2004. "Showing off his Photoshop skills?"  Couldn't they find someone else to throw under the bus?