The Aga Khan, spiritual head of Ismaili Muslims, listens to a speech during the inauguration of the restored 16th century Humayun's Tomb in New Delhi, India, Sept. 18, 2013. ( ...

This story incorporates reporting from Yahoo, MSN and MSN.Frontier Airlines experienced a nationwide ground stop affecting all its flights across the U.S. on Thursday due to an IT outage. The issue, ...