The World Expo, due to take place in Shanghai on May 1st to October 23rd 2010 will be subject to extremely heavy security.

All buses on the 42 Expo routes will have security guards stationed on them. As well as this, security officers will be deployed at 2,188 bus stops and 60 stations in order to check bags and luggage. Flying objects in the airspace above the Expo will also be banned for the duration. I wonder if that includes unidentified flying objects too?