Originally Posted by BinSabai

if they go from gate down the stairs directly into a van and then to the other gate, they will not pass security
they were screened at the departure Airport...
screening all transiting passengers seems to be an Asian Thing
In Europe and USA, they do not screen passengers in transit when they came from another European or US Airport.
Happened also once to me in Narita when I was flying with UA from BKK and transit to ORD, escort direct to outgoing plane without security check due to delay