The Brief, May 5: Chocolate Fuel, Roboto-Doc

Tonic brings you the Brief every day — good news meant to feed your brain and make you smile. What sorts of stories, you ask? Try: Chocolate "biofuel." Enough said.

Gods of Carnage and Billy Elliot on their way to Tony gold. Saving a forest = the price of getting hitched. The Metropolitan Museum's annual Costume Institute Gala Benefit puts oodles of satin-strapped best feet forward. All in the name of serving fine art. Domo arigato, Dr. Roboto. Go Ms. Osmond! An unexpected advocate. Woo hoo! Helping addicts may be as simple as asking what's up. Cocoa-car! Biofuel gets a chocolate energy boost.