What was the reason that SeaWorld filed a complaint with the Department of Labor against an OSHA worker ?
The film 's use of animal rights activists who have aggressively campaigned against marine mammal display and have no expertise with killer whale behavior in captivity , specifically Howard Garrett , Lori Marino and Ken Balcomb ; the film 's reliance on statements by David Duffus , a professor of geography whom Occupational Safety and Health Administration ’s ( OSHA ) Judge Kenneth Welsch found " has no expertise in the training of captive killer whales . "