Chef Jamie Oliver takes his reality show Food Revolution to Los Angeles in an effort to revamp lunches in the nation's second-largest school district. Greg Zabilski/ABC hide caption

itoggle caption Greg Zabilski/ABC

Actress Natalie Portman and Benjamin Millepied arrive at the 83rd Annual Academy Awards held Sunday at the Kodak Theatre in Hollywood, Calif. Jason Merritt/Getty Images hide caption

itoggle caption Jason Merritt/Getty Images

Olga Perez is trying to get more healthful food options in Ramona Gardens, her East L.A. neighborhood. Mandalit del Barco/NPR hide caption

itoggle caption Mandalit del Barco/NPR

Glendale, Calif., Police Sgt. Steve Robertson was first incapacitated by a laser beam while landing a helicopter in the mid-1990s. Since then, he says, he and his fellow police pilots in Glendale have been targeted dozens of times by people shining cheap, easy-to-buy lasers. Mandalit del Barco/NPR hide caption

itoggle caption Mandalit del Barco/NPR

Los Angeles police officers point to known local gang suspects after a  federal gang raid operation in Los Angeles on Aug. 25. Damian Dovarganes/AP hide caption

itoggle caption Damian Dovarganes/AP

Los Angeles Police Chief Charlie Beck (middle), Mayor Antonio Villaraigosa (left) and Police Commission President John Mack detail the city's crime figures, the lowest in four decades. Damian Dovarganes/AP hide caption

itoggle caption Damian Dovarganes/AP

Mexican and Peruvian fighters take aim at the American eagle that sits above Siqueiros' crucified peasant in America Tropical. Courtesy of Luis C. Garz hide caption

itoggle caption Courtesy of Luis C. Garz