Originally Posted by
We Will Never Forget
Check your facts. Again, perhaps a screener will help you. At any point in the screening process you can withdraw your consent. (barring any discovery before the consent is withdrawn)
The TSA search is for a single purpose, to determine threats to aviation security. Any additional fruits of that search become fair game when they are apparent. The same thing applies with D.U.I. checkpoints. If they find probable cause that the driver is impaired, they get the whole car during an inventory search prior to towing.
Once you place your bags on the belt, you are not free to leave.
As for the D.U.I., that is not a search in the way we generally view searches under the Fourth Amendment. It is solely an inventory prior to impounding. If the vehicle was not being impounded, then the inventory "search" would not be permitted. And don't forget that driving is not a right; it is a privilege, which makes analogies to those situations more problematic.