Originally Posted by
EXLEFTSEAT
We had a different experience at ICN arriving from BKK and transiting to LAX. We were never asked about our destination at the transit check but needed to take off shoes, belt, jacket etc., indeed just like in the U.S. Laptops needed to be taken out. Only difference was there was no cancer machine, but thank heaven only a WTMD. Had to dispose of a bottle of water though before clearing security. Hours later during the boarding process I noticed that passengers had their bottles of water confiscated at the gate check

Most if not all of our experiences involve two levels of security: first, the standard security everyone goes through, whether at an entry gate or at a transit gate (e.g. NRT), which is followed by tighter U.S.-mandated security as part of the boarding process at the gate.
Our recent experience with gate security at DEL (CO DEL-EWR) involved everything out, including all electronics, belts and shoes off, and a fairly invasive rub-down, although much more efficient and quick than that of the TSA. This was in addition to the fairly thorough wanding search as we entered security, and for that matter the two wanding searches we'd already undergone to take two metro trains from our hotel to the airport.