Rizhao city, Shandong: Rizhao Maritime Office, Rizhao Frontier Inspection Office, and the Rizhao Airport Traffic Office jointly held an anti-terrorism security drill on April 28, 2010, for the safe run of the 2010 Shanghai World Expo. The drill was aimed at examining the cooperation ability between Rizhao Maritime Office and Rizhao Airport Traffic Office and strengthening the anti-terrorism emergency procedures.