Aircrew demonstrates for more security on the Frankfurt Airport in Frankfurt/Main, Germany, 22 January 2013. Pilots are against new working time regulations, too. (FREDRIK VON ERICHSEN/ ZUMAPRESS

A man stands behind a voting booth with a dog as he picks his ballot for the parliamentary election in a polling station in Tel Aviv. Nir Elias/Reuters

A fighter from the Sadik unit of Free Syrian Army’s Tahrir al Sham brigade fires his Draganov sniper rifle from inside a house during heavy fighting in the Mleha suburb of Damascus. Goran Tomasevic/Reuters

A snowman sits on a bench on Hampstead Heath in London.  Britain has been in the grip of cold snowy weather since the weekend . Matt Dunham/AP

Swedish freeride skier Jon Oerarbaeck speeds down in deep powder snow on Seegrube mountain in Innsbruck. Dominic Ebenbichler/Reuters