Yesterday, the Macedonian authorities began demanding additional documentation from migrants. An interior ministry spokeswoman said they were temporarily denying entry to Afghans. The aim is to avoid migrants backing up in Macedonia, frustrated in their aim of moving on to wealthier northern Europe by border controls imposed by Austria, Serbia, Croatia and Slovenia. However, that is pushing the problem onto Greece, where more migrants are arriving every day from Turkey. Athens has protested to Vienna that it was not invited to tomorrow's meeting of Balkan states on the crisis.
Temporary suspension from Schengen's visa-free regime would weigh heavily on Greece's economy, damping tourism and slowing trade.
Greek students and entrepreneurs seeking to study and do business abroad would also face bureaucratic hurdles.
Resentment will build in Greece that fellow EU member states are failing to help it manage the migrant flow -- even hindering it.
