Turkey declared a national day of mourning after a terrorist attack hit Istanbul's Ataturk airport on Tuesday, killing 42 people, including 13 foreign nationals. Early indications are that Islamic State is responsible, but IS rarely claims responsibility for attacks inside Turkey. We'll get an update on the attack, and we'll discuss how the formerly stable country is struggling with Kurdish militants and – with its 500 mile border with Syria – is vulnerable to Islamist violence.
Turkey Observes National Day of Mourning After Airport Attack Kills 42
Robert Worth, contributor to The New York Times Magazine; author of "A Rage for Order"
Fawaz Gerges, professor of Middle Eastern Politics and International Relations, London School of Economics and Political Science; author of "Isis: A History"
Khashayar Joneidi, BBC Persian correspondent in Istanbul