How Did 3 London Schoolgirls Make It To Syria?

The three British schoolgirls who traveled from London to Turkey last week, likely for the purpose of joining the group that calls itself the Islamic State, have successfully crossed the border into Syria, authorities say. But how did they do it? The BBC's Selin Girit reports from Gaziantep on the Turkish-Syria border.

Note: This BBC interview can be heard in the Here & Now podcast or with the WBUR app.