The anonymous Web surfing system Tor is run by volunteers — and sometimes they get caught between the police and criminal suspects. Daniel Acker/Bloomberg via Getty Images hide caption

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When A Dark Web Volunteer Gets Raided By The Police
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A boy is carried ashore moments after his arrival with other Syrian and Iraqi migrants on the island of Lesbos from Turkey on October 14, 2015 in Sikaminias, Greece. A recent piece in Scientific American highlights the connection between the Syrian refugee crisis and Syria's recent drought. Spencer Platt/Getty Images hide caption

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Supporters cheer during a meeting Monday when the Seattle City Council voted to approve a measure that would allow ride-sharing drivers for Uber and other ride services to unionize. Matt Mills McKnight/Reuters/Landov hide caption

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Fact Checking Uber On Labor Laws
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Workers steam-clean decades of gum off Seattle's famous "gum wall" on Tuesday. Tourists and locals have been sticking chewing gum to the wall near Pike Place Market for 20 years, leaving an estimated 1 million pieces in a kaleidoscope of colors, some stretched and pinched into messages, hearts and other designs. Elaine Thompson/AP hide caption

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Teachers walk the picket line outside Garfield High School in Seattle, Wash., last week. They're going back to work on the strength of a tentative contract agreement. Matt Mills McKnight/Reuters /Landov hide caption

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