Originally Posted by
FlyerLX
.... I see... So in that case, why the difference in traffic from B to A (definitely security) and Z to A (security only from non-clean) ? After all, an arriving flight from, say, USA can arrive on B or on Z, can’t it...??
Even if you arrive clean in non-Schengen B there is no way to get to A/Z without exiting the secure zone.