Simple Flying - Pranjal Pande
Each country has different security standards for arriving and connecting passengers.
For those living or traveling through Europe, the biggest difference can be seen in London Heathrow and Munich Airport. Once you get off a flight to the UK, you must complete another security screening despite only having traveled from a secure terminal and the aircraft itself.
However, it's a different story in Munich or Oslo, where you can simply step off the first plane and walk to the next gate without any more hassle. The reason for this lies in government policy only.
However, it's only these three airports that are singled out. Dubai, Hong Kong, and Tokyo Narita all need a second security check for transit passengers, while Munich, Amsterdam Schiphol, and select others do not.