Remember the film “Minority Report” with Tom Cruise? Cruise worked for the Department of Pre-Crime. Pre-Crime was able to determine who was going to commit crimes in advance, so they were able to send Cruise out to arrest and lock up people before they had done anything wrong.
This is called preventive detention. It is unconstitutional; and is a mark of a totalitarian state. The US has been doing it for years. President Obama recently announced that–while George Bush had gone about it in a haphazard way–Obama would formalize the practice through a new “legal” framework.
This prolonged imprisonment of suspects in the “war on terror” goes on even though the government cannot prove that the prisoners have committed any crime. [Note: as a point of reference, keep in mind that in the State of Missouri, no one can be held without formal criminal charges for more than 24 hours–even if the person is suspected of murder]