Guys,

I have just become interested in alines and OVNIs stuff since ever but even more when i visited the NASA buildings Cape Canaveral (sorry about my english). There i saw a lot of things and took a lot of photos. I went inside the buildings with the rest of my mates and went to the place where NASA launches rockets to space. It was awesome!!! We saw many more things there and since that day i got myself really interested and excited about extraterrestrial stuff.

I believe that fields-signs were made by them because, as TN123 says, there is now way to get inside the crops without breaking them. To make that signs you'll need machines, and how can you take a machine inside the crops without breaking anything. Mmm..., from the air with a helicopter at night???, nope, impossible, helicopters make noise and have lights, and at night they would have needed that lights to light your work area and so people living nearby would have seen that lights and alert othere people. If they worked during the day... then even worse, all the world would have seen them!!! So, impossible for humans..., this is my opinion.

Bye.

DKRR