National Geographic commisioned Crop Circle?

Yes they made it and with the farmers permission. If you look at 0:40 in the video below you'll see a letter from the farmer which is attached to a metal post next to this field. The post has a slot in it to colloect £2 from each person who wishes to go and have a closer look.
The farmer claims that he believes the circle was man made and asks for the money to cover the cost of the damaged crops. I know that National Geographic made this circle and I would find it difficult to believe that the farmer didn't have any prior knowledge.
yes it is a murky world where crop circles are concerned. It is far far worse than most people know. That must change and soon.

2009 crop circles from the air