British police dog handlers patrol a train station in London in January. Matt Dunham/AP hide caption

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A woman carries a French flag during a ceremony in Paris on Friday honoring those killed in the Nov. 13 attacks. French President Francois Hollande has encouraged the French people to display flags, something they don't often do. Thibault Camus/AP hide caption

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The U.K. coastguard and local boatmen recovered a piece of metal from the sea off the Isles of Scilly in Britain. The debris is likely from the U.S. rocket SpaceX Falcon 9, which blew up after takeoff in June. Handout/Reuters/Landov hide caption

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French President Francois Hollande delivers a speech honoring victims of the Paris attacks during a ceremony at the Invalides in Paris on Friday. The names of each of the 130 people killed in the attacks two weeks ago was read aloud. Francois Mori/AP hide caption

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Coal fires burn early in the morning in January 2014 at a privately owned coal mine in India's Jharkand state, making the air dense with noxious smoke and dust. Forty percent of India's mineral wealth lies in Jharkhand. Johnny Haglund hide caption

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Russian President Vladimir Putin (right) listens to French President Francois Hollande as they leave their news conference in Moscow on Thursday. Alexander Zemlianichenko/AP hide caption

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