Shanghai Daily news

Shanghai Vice Mayor Yang Xiong today participated in a radio program to talk about World Expo 2010.

Hong Hao, director of Shanghai World Expo Coordination, also took part.

In the one-hour program, two officials answered questions from listeners about traffic problems during the Expo, ticket prices and volunteer recruitment.

The program -- Citizen and Society -- is aired on local channels AM 990 and FM 93.4. People can talk with city officials via a hotline or send text messages through mobile phones.