http://www.whitehouse.gov/vicepresid...tdoors/06.html

Pay close attention to the reflection in his sun-glasses.

Having zoomed in on the image up, it looks to me that the picture of Cheney has been Photoshoped onto a generic green background. Pay attention to the area between the background and Cheney's hat and you'll see it was smoothed over, assuming you can zoom in with your favourite image processing tool.

I thought it was funny anyway.