Melinda Liu on the extraordinary odyssey of Chen Guangcheng.

When aviation missionary Gaston Ntambo receives a call for an emergency medical flight in the Democratic Republic of the Congo, he must first get permission to fly to neighboring Zambia to obtain fuel.

Flight diverted to Maine over 'security issue' Associated Press Copyright 2012 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 02:46 p.m., Tuesday, May 22, 2012 AUGUSTA, Maine (AP) — An official says US Airways Flight 787 from Paris to Charlotte, N.C., has been diverted to Maine because a French passenger exhibited ...