It's not personnel, they have to stop the queues from moving through security in order to prevent over crowding in the gate rooms which, are always over packed

It's not personnel, they have to stop the queues from moving through security in order to prevent over crowding in the gate rooms which, are always over packed full of people. Berlin's awful setup results in delays across the region, it's no wonder other airports are reluctant to link there and divert to Frankfurt instead.