The State has just instructed the prefects to create "reception airlocks" to accommodate thousands of migrants. We understand the problem statement: we must relieve congestion in the reception facilities of Île-de-France, saturated by the flood of applications.

We also read, between the lines, the unofficial part of the equation: it is a question of putting on a good face before the Rugby World Cup and the Olympics. It is the resolution - very ephemeral and to say the least imaginary - that baffles, or rather despairs. Is it reasonable to bet on a hypothetical optical illusion instead...