spain.siMadrid wants to see changes made to the treaty governing the visa-free Schengen area, which would allow Spain to introduce border controls to stem the tide of Islamic militants returning from the Middle East, the country’s interior minister has said.  “We are going to back border controls and it is possible that as a consequence it will be necessary to modify the Schengen treaty,” Interior Minister Jorge Fernandez Diaz told the daily El Pais in an interview on Saturday. “The existing mobility in the European Union is facilitating the movements (of jihadists) to any country and also to our country,” he continued. The minister and his European counterparts are set to discuss the future of Schengen during a meeting in Paris on Sunday. Diaz is not the first European politician to consider revamping or altogether suspending the Schengen zone in response to the deadly attacks in and around Paris this week, which left 20 dead, including three attackers. On Friday, The leader of France’s rightwing Front National (FN), Marine Le Pen, told French President Francois Hollande that the country should “immediately suspend Schengen to be able to control our borders” in what she called an “essential element in the fight against terrorism.” More