The Los Angeles Police Department will deploy 500 officers to wrap the Dolby Theatre in multiple barriers of armed security for the 90th Academy Awards on Sunday night, an event at which several of Hollywood’s most celebrated stars will actively push for more gun control in America. “We have these concentric rings of security that start in the middle and radiate outward,” said LAPD Cmdr. Blake Chow, the man tasked with overseeing the massive operation. “We have a lot of officers in fixed posts and foot beats keeping an eye on the event.” Several celebrities plan to wear orange lapel...