Hajj 2011: Saudi-Iran Tensions Overshadow Pilgrimage

More than 1.7 million pilgrims have already arrived in Mecca, the Saudi city where Islam was founded 1,400 years ago. A record 2.8 million pilgrims performed the hajj last year, including more than 14,000 Americans and almost 100,000 Iranians. Saudi authorities expect similar numbers this year.