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.

Melinda Liu on the extraordinary odyssey of Chen Guangcheng.

BANGOR, Maine - Officials diverted a US Airways jet to Maine after a French passenger travelling from Paris to North Carolina handed a note to a flight attendant mentioning that she had a surgically implanted device, prompting concerns about possible terrorism.