Fantastic and very educational/informative tutorial - thank you ! I wish I had known about the clever aluminum foil in the middle of the protest banner trick when I attended the Canberra, Australia freedom rally last year. There was definitely something akin to microwave weaponry being utilized that day. It is really sad when our Western Governments believe they have any right to attack peaceful protesters. Anyway, any further tips and tricks like this are greatly appreciated - thanks again :)