In Vancouver on April 27, U2 filmed the video for "City of Blinding Lights" at GM Place. As I was standing in line to get in, there was an employee walking around and asking if any U2.com members were there. I said I was a member and he asked for my card, which I don't carry with me (augh!) and he said sorry, then moved on. Anyone know why he would have been asking for membership cards?