People look at the Eiffel Tower illuminated in colours of the Belgian flag in tribute to the victims of terrorist attacks in Brussels, in Paris on March 22, 2016. Around 35 people were killed and more than 200 wounded in a series of attacks in Brussels today claimed by the Islamic State group and described as a strike at the very heart of Europe. / AFP / LIONEL BONAVENTURE (Photo credit should read LIONEL BONAVENTURE/AFP via Getty Images)
