Forensic investigators stand near a blood-soaked vest outside Brussels Airport, in Zaventem, on March 23, 2016, a day after triple bomb attacks at the Brussels airport and at a subway train station killed 31 people and wounded more than 200. World leaders united in condemning the carnage in Brussels and vowed to combat terrorism, after Islamic State bombers attacked the symbolic heart of the EU. / AFP / POOL / YORICK JANSENS (Photo credit should read YORICK JANSENS/AFP via Getty Images)
