Reading the blog post by Bruce about liquid ban flaws at Schiphol, Amsterdam, reminds me of the same style of security system being used at Kualu Lumpur International Airport (KLIA), Malaysia too! Basically KLIA also allows passengers with printed boarding pass to go to the duty-free shopping area, which is located at the satellite building, without having to go through any security checks, yet.The passengers will only be checked when they want to enter the waiting lounge of their respective gate. Because the airport allows passengers to buy duty-free goods there, the security personnels will have to allow passengers to bring lots of liquids up the plane as well. There lies the flaw, where passengers can potentially exchange the liquids inside the bottles of liquids they bought at the airport with those they brought in from outside the airport. I could not remember whether bottles of liquids bought at KLIA are sealed. But it does not matter. Passengers can still get pass this by doing what the reporter did as described in the above blog post.I remember asking questions some time ago about not having central security checks before allowing passengers to enter an airport. It makes sense to distribute security checks to gates as passengers then do not have to queue together with passengers of other planes, thus potentially shortening queueing time. But it does bring questions to my mind about whether this is a good way to secure an airport. To me terrorists can bomb the airport relatively easily even though they may not be able to bring liquid explosives up the plane. But now it seems that the terrorists may be able to bring large amount of liquid explosives up the plane as well!