TO GO WITH AFP STORY BY FULYA OZERKAN Passengers wait at the passport control check desk of the international airport in Istanbul on January 29, 2015. The country has long been under pressure to do more to thwart the transit of jihadists across its territory to war-torn Syria. Thousands are believed to have taken commercial flights to Turkish airports before heading overland to Syria to fight alongside Islamic State (IS) militants. AFP PHOTO / OZAN KOSE (Photo credit should read OZAN KOSE/AFP via Getty Images)
