"My own analysis is suggesting that this crop circle, along with two other crop circles of the season, may have been the product of weapons testing. The ground evidence suggests that an energy in the microwave region has been used. Genuine crop circles contain traceable electromagnetic energy (in the mid to high MHz range), which ally with biological and brainwave states (these would be responsible for the changes in chromosomes in crop circles plants, and for the range of physiological affects on visitors); microwave however operates in the GHz range and tends to leave plants and soil sterile (the opposite is true in genuine crop circles). Technology capable of transmiting coded information at such a range was recently switched on in Alaska, under the U.S. military's secret project HAARP. It's just a thought..."
Dunno, but he sounds like a nut to me.
Which part of the paragraph do you think is "nutty"? If you referring to the effects of radiowaves on humans, check out these links..
Electropollution, Microwaves, and the effect of Electrical Fields around the body