Who covered up for ISIS in the case of James Foley?

From T: "Professor, I hope you didn't watch the gruesome beheading of James Foley (RIP), at the hands of a British ISIS member. The sad irony is, these "western" jihadi terrorists and James Foley flew into the same airport in Turkey, and crossed the same open and PURPOSELY porous border because Erdogan/Saudi/Qatar/John McCain/FSA were all too keen to use these terrorists for their own agendas ".