There IS a single act which can bring about change in the world.
Demand an accounting for the US government's actions on Sept 11, 2001. Single-issue. Focus on that intently. Demand an accounting. There are lawsuits against GWBush right now for MURDER! STALLED BY THE WHITE HOUSE! DEMAND an accounting every time the subject comes around to politics or airplanes or Arabs or children or gardening or hula-hoops. INSIST on an accounting, and the whole criminal organization will come tumbling down. Tell ten people a day the US govt did the Sept 11 job, and the terrorism nightmare will be over in a year.