On today's Your Call, we’ll speak with David Kirby about his new book, Death at SeaWorld: Shamu and the Dark Side of Killer Whales in Captivity. In 2010, a captive 12,000 pound orca killed the well known trainer Dawn Brancheau at Sea World Orlando. Her death may lead to significant changes at marine mammal parks. It also sparked a heated debate about whether the world’s top predator should be held captive. Join us at 10 or email email@example.com. Where do you stand on this issue?