I'm going to U2 show in Montreal and since I haven't attend a big show in years, I am wondering if you can get onto the site with a big Nikon. What are the photography policies on big shows?

Yeah, I went to the show last night in T.O. and everyone was taking pictures. They actually had few minutes when Bono got them to turn of all the lights and to have everyone just get out their phones or take a picture with a flash as a tribute to the people in the international space station.