Four days after they arrived quietly at a Kanata hotel, the world's rich and powerful left just as mysteriously, in limos and SUVs with blacked-out windows. The Bilderberg Group, a secretive organization of politicians and business leaders from around the world, gave no public statements. With private security guards and metal barriers keeping outsiders on the street, the Bilderbergers met privately and then whisked themselves away in ones and twos, mostly to the airport. What they talked about at the Brookstreet Hotel is still a secret. The group meets annually, and is usually rumoured to discuss international politics and business, from Middle East crises to oil prices. They emerged singly yesterday -- Bilderberg president Etienne Davignon of Belgium, American David Rockefeller, Italian economist Mario Monti, European competition commissioner Neelie Kroes from the Netherlands, and, watchers thought, Iraqi politician Ahmed Chalabi. Protesters on the sidewalk have their own version of the agenda: world domination, a merger of Canada with the United States and Mexico, hiding the cure for cancer, suppression of cars that get 200 miles per gallon of fuel, [and] an invasion of Iran.