Flowers are seen next to a French flag at a makeshift memorial in Nice on July 16, 2016, in tribute to the victims of the deadly attack on the Promenade des Anglais seafront which killed 84 people.
The Islamic State group claimed responsibility on July 16, 2016 for an attack in which a Tunisian drove a truck through a crowd in Nice, killing 84, prompting hard questions in France over security failures. / AFP / BORIS HORVAT        (Photo credit should read BORIS HORVAT/AFP/Getty Images)