Do your own analysis. I have. The vast, vast majority of stolen bikes here in Portland have one thing in common-- they were locked with a cable lock, which was cut with bolt cutters. The remainder of stolen bikes include bikes that were left unlocked, or were locked improperly (u-lock securing front wheel only). I have yet to see ONE report of a stolen bike where it was properly locked with a u-lock and the thief used power tools to cut the u-lock. Yes, theoretically it's possible, but in the real world, thieves use bolt cutters to cut cable locks. Over and over and over and over.....

As for the two guys in the video, it only proves two things: 1) Passersby won't interfere with guys they assume are the owners, and 2) that two guys who own a bike aren't going to be paranoid about cutting the lock off their own bike. A thief making all that racket wouldn't be as cocky, because there's always the chance that he could get whacked in the back of the head by the real owner as he's busy trying to cut a u-lock in broad daylight. Yes, theoretically it's possible to go out with power tools and cut away for 10 or 15 minutes, but that theoretical possibility doesn't take into account the paranoia the thief will be battling as he's wasting all that time in a very noisy, high-profile endeavour. I don't think it happens as easily as these guys portrayed in their video.