Issues relating to migration policy and border controls should be coordinated only at the European level, according to authorities in Greece. The tightening of border controls or questions about turning back migrants at national borders should be decided following a joint decision by EU partners and not autonomously, Greek Migration Minister Nikolaos Panagiotopoulos said on Greece’s ANT1 television channel. It was not acceptable for individual states to introduce border controls due to internal political pressure, Panagiotopoulos said, in likely reference to Germany’s recent decision to do thi…