Greece resists its role as EU's back door

Idomeni, Greece

ON a recent weekday, 40 buses jammed into the carpark of a petrol station near the Macedonian border, carrying thousands of refugees who had survived a wintry sea crossing from Turkey. Now they were approaching ground zero in the intensifying debate over how to curb the unceasing stream of men, women and children from war-ravaged and poor nations in the Middle East and Africa to the safety and prosperity of Europe.

After trying and largely failing to persuade Turkey to stem the flow, Europe has reached…