AMANDA RIGHETTI (The Mentalist) and Owain Yeoman at The 25th Anniversary GENESIS AWARDS Winners Press Room at Hyatt Regency Century Plaza in Los Angeles, California USA March 19, 2011 br br The Humane Society of the United States is the nation's largest animal protection organization — backed by 11 million Americans, or one of every 28. For more than a half-century, The HSUS has been fighting for the protection of all animals through advocacy, education and hands-on programs.