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Marshal of the Senat (upper house of the Polish parliament), Stanislaw Karczewski in front of Embassy of Belgium (after a series of terrorist attacks in Brussels), in Warsaw, Poland, on March 22, 2016. (Photo by Mateusz Wlodarczyk/NurPhoto) (Photo by Mateusz Wlodarczyk/NurPhoto/NurPhoto via Getty Images)

Marshal of the Senat (upper house of the Polish parliament), Stanislaw Karczewski in front of Embassy of Belgium (after a series of terrorist attacks in Brussels), in Warsaw, Poland, on March 22, 2016. (Photo by Mateusz Wlodarczyk/NurPhoto) (Photo by Mateusz Wlodarczyk/NurPhoto/NurPhoto via Getty Images)