Originally Posted by Bart
No such thing as "too many bags being opened" when it comes to security.
Yes, there is. No bag should be opened unless there is clear, probable cause to do so, such as an x-ray indicating the presense of something unclear/dangerous or an indication of unknown/chemicals.
Not only does opening bags increase the probability of a crime of opportunity, as
GradGirl states, but it also is extremely un-American.