A man impersonating Giacomo Casanova smiles in St. Marks' Square, during the Carnival, in Venice, Italy, Sunday, January 24, 2016. Authorities have increased surveillance throughout the city and increased the number of officers on patrol, both under-cover and in uniform, but backed down on a proposal to ban revelers from wearing masks on the occasion of the Venice Carnival. (Photo by Luca Bruno/AP Photo)
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