Security ... think about it!
AT DUSK on a recent Thursday, a small corner of the UC Berkeley campus comes alive with activity. A dozen young people — mostly men but some women — jump on, bounce off and climb every railing and planter box as if they were piping hot. Fast on, fast off. They are training in the art of parkour, a sport that started in France that is growing exponentially all around the world, thanks to the Internet and movies such as "Casino Royale." The word parkour is loosely based on the French word "parcours," which means "route."