According to this article in the BKK Post
http://www.bangkokpost.com/topstories/t ... ?id=116985
Authorities plan to search everyone's bag and packages before they can enter any mass transit station. With so many people using the system I don't see how this program can be very workable and still allow everyone to get where they are trying to go in a timely manner. And what about buses?
Here in DC they talk about the vulnerability of the subway system but they also say it would be impossible to stop everyone to check all bags. Between the amount of manpower it would require and the massive delays and inconvenience it would add to the system it's just not workable. So they just step up patrols with sniffer dogs from time to time and hope that nothing bad happens.
The bottom line is that if the bad guys really want to do something bad they are going to do it no matter how much security you put in place. They need to work on intelligence and arrest people before they can put their plans in action.
It's been asked before, but what exactly do the "insurgents" want? What are they trying to accomplish by killing so many innocent people and destroying so much property?