Playback: BEST PHOTOS of the week gone by

The luxury cruise ship Costa Concordia is shown run aground off the coast of Giglio in this January 17, 2012 DigitalGlobe handout satellite photo obtained by Reuters January 18.

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Tibetan exiles shout slogans after being detained by police during a protest outside the venue of a meeting between Chinese State Councillor Dai Bingguo and India's National Security Adviser Shiv Shankar Menon in New Delhi January 17, 2012. Dai was in India on a two-day visit for the 15th round of boundary talks.

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A musher and his dogs compete during the ninth stage of the La Grande Odyssee sled dogs race at the Polar Base in Mont-Cenis January 17, 2012. The race crosses the Alps in France covering over 1000 km (621 miles) over 11 days. Picture taken January 17, 2012. 

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An unexploded mortar shell, left from recent fighting between security forces and tribal militants loyal to the powerful al-Ahmar family, is seen on a road in the vicinity of government buildings in the Yemeni capital Sanaa January 17, 2012.

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A spotted deer drinks water from a puddle on a foggy day in the Golan Heights, near Israel's border with Syria January 17, 2012. Israel captured the Golan Heights from Syria in the 1967 Middle East war. Despite the fact that the two countries have never made peace, the Golan frontier has largely been quiet. A UN force patrols the demarcation line between the Golan Heights and Syria.

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A man cleans foam from his body after taking a bath in the polluted waters of river Yamuna on a cold winter morning in New Delhi January 19, 2012.

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A Belarus Orthodox priest dips a cross into waters of the Tsnyanskoye reservoir during Epiphany celebrations in Minsk late January 18, 2012. Orthodox Christians celebrate the religious holiday of Epiphany according to the Gregorian calendar on January 19. 

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An elderly man hugs a boy in the Andalusian capital of Seville January 18, 2012.

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A musher and his dogs compete on a track near the Mont-Cenis Path during the ninth stage of La Grande Odyssee sled dogs race January 17, 2012. The race crosses the Alps in France covering over 1000 km (621 miles) over 11 days. Picture taken with a long exposure ayndc a fisheye lens.

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Naseem, a 90-year-old Pashtun man, keeps himself warm in the sun outside his house in Quetta January 20, 2012.

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A villager is pinned down by a bull during a bull-taming festival on the outskirts of Madurai town, about 500 km from Chennai January 16, 2012. The annual festival is part of south India's harvest festival of Pongal.

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A woman looks at a highland cattle in the animals pavilion at the Green Week Agriculture and Food Fair in Berlin, January 20, 2012. The annual exhibition of food stuffs and agricultural products is one of the world's largest of its kind. It opens its doors to the public on January 20.

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Alexandr Dolgopolov of Ukraine prepares to hit a return to Bernard Tomic of Australia during their men's singles match at the Australian Open tennis tournament in Melbourne January 20, 2012.

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An ostrich which had escaped from a farm walks past a car in Tomioka town, inside the exclusion zone of a 20km radius around the crippled Fukushima Daiichi nuclear power plant, Fukushima prefecture, January 15, 2012. The Fukushima Daiichi nuclear power plant was hit on March 11, 2011 by a tsunami that exceeded 15 metres in some areas. The tsunami knocked out the plant's cooling systems, resulting in meltdowns of nuclear fuel, and became the world's worst atomic crisis in 25 years.

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Police stand near a motorcycle helmet containing a human head and topped with a foam hat with the writing "Happy 2012" placed outside a house in a residential area in Morelos January 16, 2012. More than 46,000 people have died in drug-related violence since Mexico's President Felipe Calderon launched an army-led crackdown on drug cartels after taking office five years ago.

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Canadian artist Erika Lemay performs during the opening ceremony of the 36th International Circus Festival of Monte Carlo in Monaco January 19, 2012.

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