Legal theorist: Governments should not be allowed to use the personal diaries of an individual who is the subject of a criminal prosecution as evidence against that individual. A diary is a silent conversation with oneself and there is no relevant difference between speaking to oneself, writing one' s thoughts down, and keeping one' s thoughts to oneself. Which one of the following principles, if valid, provides the most support for the legal theorist's argument? ['Governments should not be allowed to compel corporate officials to surrender interoffice memos to government investigators.', "Governments should not have the power to confiscate an individual's personal correspondence to use as evidence against the individual in a criminal trial.", 'When crime is a serious problem, governments should be given increased power to investigate and prosecute suspected wrongdoers, and some restrictions on admissible evidence should be relaxed.', "Governments should not be allowed to use an individual's remarks to prosecute the individual for criminal activity unless the remarks were intended for other people."]