actually its a question that has been nagging me for a long time, until i realize that it does not do anything except for some psychological na dating na nagsasabing "nagiinspect kami.."

now things would be different if they do things in detail, which i think will create traffic specially at the entrance of each building or mall.

and even though they use bomb sniffing dogs, i don't think it will be very much effective. most dogs cannot sniff out C4. and it will be very costly.