Transiting at Frankfurt airport, I didn't have to reclear security when flying from the US, but I Had to reclear when transiting through London Heathrow.
So apparently Germany trusts some countries' airport security, but the UK doesn't.
So apparently Germany trusts some countries' airport security, but the UK doesn't.
They apparently don't trust Singapore. I was on a flight from SIN->JFK that had a stop in FRA (we got off and got back on the same plane). We still had to go through security.
JFK->SIN though we could get off and didn't have to worry about any security or immigration.