Photos of the week: Grounded planes, smoggy skies, and more

Jan. 16, 2013. The smog shrouded view of the Forbidden City in Beijing.
Jan. 16, 2013. A smog-shrouded view of the Forbidden City in Beijing. Pollution levels reached 20 times the international standard and settled over Beijing for days. (Getty Images / Feng Li)
Facebook CEO, Mark Zuckerberg, introduces “graph search" at Facebook headquarters in Menlo Park, Calif. The new service that lets users search their social connections for information about their friends’ interests, and for photos and places.
Kind of a big deal. (AP Photo / Jeff Chiu)
africa, mali
Jan. 17, 2013. Soldiers from Togo arrive at Bamako-Sénou International Airport in Mali. They were brought to help French and Malian government forces fight jihadist insurgents in control of the north of the country. (AP Photo Jerome Delay)
Maha Kumbh Mela
Jan. 15, 2013. Hindu devotees bathe in the holy river waters during the Maha Kumbh Mela, which was expected to be the largest human gathering in history.
Jan. 17, 2013. People wade through a street in Jakarta, Indonesia, where 11 people have died as a result of flooding. (AP Photo / Tatan Syuflana)
Jan. 17, 2013. A line of 787 jets parked nose-to-tail at Paine Field in Everett, Washington. Federal officials grounded Boeing's 787 Dreamliners until the risk of possible battery fires is addressed. (AP Photo / Elaine Thompson)
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