Take on the security line

Can somebody explain why, when there is no line, these airport mongos
still make you walk through that entire maze? Forget trying to
bypass this thing, since, well, there is no reason to walk back and
forth ten times, as you might have Homeland Security on your ass.
This is exactly what has happened, travel has become so restrictive
that you can't go so far as Philadelphia without having some chick
make sure you don't have any hemorrhoids.