Members of Russia's special forces stand guard during an operation on suspected militants in Makhachkala, the capital of Russia's North Caucasus Republic of Dagestan January 20, 2014. An Islamic ... more 
Members of Russia's special forces stand guard during an operation on suspected militants in Makhachkala, the capital of Russia's North Caucasus Republic of Dagestan January 20, 2014. An Islamic militant group said in a video posted online that it was behind two suicide bombings that killed at least 34 people last month in the Russian city of Volgograd, and threatened to attack the Sochi Winter Olympics. The video says two men called Suleiman and Abdurakhman carried out the Volgograd attacks on behalf of a group known as Vilayat Dagestan and linked to an Iraqi faction called Ansar al-Sunna. REUTERS/Stringer (RUSSIA - Tags: POLITICS CIVIL UNREST MILITARY) less 
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Reuters | Photo By STRINGER/RUSSIA / REUTERS
Mon, Jan 20, 2014 10:28 AM EST