Technology can now establish what you're thinking through a type of brain scan. Articles a good read by the jackass of an author cites Spielberg for making the movie "Minority Report" without ANY reference to PKD coming up with the idea for it.

www.guardian.co.uk/science/...7,00.html

"If brain-reading can be refined, it could quickly be adopted to assist interrogations of criminals and terrorists, and even usher in a "Minority Report" era (as portrayed in the Steven Spielberg science fiction film of that name), where judgments are handed down before the law is broken on the strength of an incriminating brain scan."