I've been taking photos of commericial aviation for 13 years and I knew this was going to happen to somebody soon. Two passengers and the person who reported them were removed from UA593 operating DEN-SNA by an Airbus 319 Thursday evening: http://www.thedenverchannel.com/news...84/detail.html

Fair use exert:

A United plane taxiing on the runway at Denver International Airport returned to its gate Thursday night after a passenger notified a flight attendant of three suspicious passengers on board.

It's believed that a couple of the passengers were taking photographs, or something like that, while the plane was taxiing, and that raised suspicion, said DIA spokesman Jeff Green.

This kind of crap is why my hobbies have been moving away from commercial aviation the past few years. I was almost kicked off a Continental Express CRJ flight in 2008 (operated by Chautauqua Airlines) for asking if I could visit the flight deck while parked at the gate and the flight attendent had a total over-the-top reaction to my request. Also in 2008, I had a UA flight attendent demand I shut down my laptop computer inflight because I had this photo (taken by me) set as the wallpaper: http://www.jetphotos.net/viewphoto.php?id=5938235