Motorists stuck on Mercer Street this summer have been treated to an odd overhead sight as they crawl under Aurora Avenue toward I-5. Wielding banners and signs, a small band of protesters has appeared on certain evenings, waving at drivers below and encouraging them to honk if they hate Xenu. And now, following a notorious Tom Cruise video released earlier this year and a certain prior South Park episode, Scientology finds itself the target of a new generation of activists who have declared this coming Saturday, August 16, to be their next worldwide Scientology protest day