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Justin Trudeau, Canada's prime minister, looks on during a special session at the World Economic Forum (WEF) in Davos, Switzerland, on Wednesday, Jan. 20, 2016. World leaders, influential executives, bankers and policy makers attend the 46th annual meeting of the World Economic Forum in Davos from Jan. 20 - 23. Photographer: Matthew Lloyd/Bloomberg via Getty Images

Justin Trudeau, Canada's prime minister, looks on during a special session at the World Economic Forum (WEF) in Davos, Switzerland, on Wednesday, Jan. 20, 2016. World leaders, influential executives, bankers and policy makers attend the 46th annual meeting of the World Economic Forum in Davos from Jan. 20 - 23. Photographer: Matthew Lloyd/Bloomberg via Getty Images