By JOE McDONALD and HUIZHONG WU BEIJING (AP) — The Beizhong International Travel Agency in the eastern city of Tianjin has had only one customer since coronavirus outbreaks that began in July prompted Chinese leaders to renew city lockdowns and travel controls. Most of China is virus-free, but the abrupt, severe response to outbreaks has left would-be tourists jittery about traveling to places they