Frankfurt - transit security question
Sorry if this has been answered before. Did a quick search but found nothing.
Flew last week Manchester to Rome via Frankfurt, with Lufthansa. Arrived Frankfurt T1, to depart T1. Yet we had to go through security again.
Why is this? Is there no such thing as 'being airside' anymore for transit passengers?
Or is it something to do with the fact that the onward flight from Frankfurt was classed as an 'internal' (Schengen) flight? Even so, why go through security twice?
A colleague also tells me he has flown from Manchester to Rome via Zurich. He had to deplane, do all the security thing again, only to find himself boarding back onto the same plane, with same crew - even the same seat.
How can this make any sense? Or am I just missing something blindingly obvious?