Originally Posted by
jkhuggins
Because the passenger's response has no relevance to the problem at hand.
The passenger will always respond with some plausible explanation of what the item is. Even in the extremely rare case where the item was, in fact, a bomb, the passenger would respond with some plausible explanation. Therefore, the passenger's response offers no useful information to the TSO.
NOT TRUE!!!!! You must have forgotten that the exhaustively trained, awesomely skilled BDOs can tell at an instance whether the passenger's response is true or not. In fact, in only a few moments most BDO's can use something like a Vulcan mind-meld to know what the passenger knows!