OTTAWA -- Greeted at the airport by limousine drivers holding single-letter "B" signs, global luminaries such as Henry Kissinger, David Rockefeller and Queen Beatrix of the Netherlands began arriving in Ottawa Thursday for the annual gathering of the ultra-secretive Bilderberg Group. Over the next three days, they and other prominent political and business leaders from North America and Europe are expected to discuss issues such as the security threat posed by Iran and the direction of oil markets. The group's discreet approach was evident as attendees arrived at the Ottawa International Airport. Outside the airport, a phalanx of limousines queued...