Turkey is one of the gateways to the Middle East for would-be jihadists via its porous border with Syria. It's an uncomfortable status and a situation the international community would like to see changed. The topic is bound to come up at an international summit in Washington planned for next week on how to tackle islamist militants in the Middle East. Our correspondents in Turkey went to see what the situation is on the ground, and how much progress is still to be made.