Belgium has begun three days of mourning after at least 31 people died and over 230 were injured Tuesday in bombings targeting the Brussels Airport and a crowded subway station near the headquarters of the European Union. ISIS took responsibility for the Brussels bombings and claimed more would follow. The bombings took place just days after authorities arrested Salah Abdeslam, a suspect in the November Paris attacks that killed 130 people. A massive manhunt is underway for a 24-year-old Belgium man named Najim Laachraoui, who is suspected of being involved in Tuesday’s attack as well as the Paris bombings. Over the past decade, hundreds of young Belgian men have left their home to fight with ISIS and other militant groups in the Middle East. We speak to three guests about the Brussels attack and how Belgium should respond: Frank Barat in Brussels, journalist Joshua Hersh and Yasser Louati of the the Collective Against Islamophobia in France.