An article about pranks, in the Wall Street Journal of all places, introduces 'The Man' to the New Pranksters (Improv Everywhere, etc) and comes replete with an old prankster deriding the young whippersnappers.

There's a lot in here lumping together flash-mobs-with-a-purpose (pillow fights, zombie marches, subway station freezes) and what seem to be actual pranks (a protest of 40 redheads at a Wendy's). That might happen because the participants and engineers take part in both, though.

I think WSJ is interested because the creator of Improv Everywhere has begun to commercialize his talent. Obviously his first fans hate that and think he's selling out.