A Swiss special policeman patrols on a roof before the start of the annual meeting of the World Economic Forum (WEF) 2014 in Davos January 21, 2014. The annual Davos gathering, which draws thousands of the world’s most powerful people, will this year welcome more than 40 heads of state and government to focus on questions about the world’s future, organisers said on Wednesday. This year’s event will run from Jan 22 to 25. REUTERS/Ruben Sprich (SWITZERLAND – Tags: POLITICS BUSINESS)