Watch Urban Outlaws: Risking Their Lives for Art & Fame

Do today's urban daredevils - stars of Instagram and YouTube - have anything in common with the original master of the high-stakes spectacle, Philippe Petit? After all, what could be more subversive than walking on a tightrope between the two World Trade Center towers during rush hour in 1974? We asked Petit and his modern-day equivalents directly, and the answers were fascinating.