Originally Posted by cur
Of course X-Ray machiens can't detect explosives, only the carbon and metal objects used to explode them.
This is why the TSA has a little thing called the ION SCAN. Google it if you never heard of it.
It's the IonScan Sentinel II, and if you wouldn't mind using the search feature of this website, you'd find that not only am I extremely familiar with them and their operation, but I've also been posting copiously advocating their use.