Would it help you when reading the ratings for a video game as determined by the Entertainment Software Ratings Board, to read a warning that states violent video games have been linked to violent behavior? Would it help you if that warning appeared on all ratings for nearly all games, including those that have no violence whatsoever? Would it help if you knew what "linking" means in this context?

The latest version of a bill to amend the video game ratings system with mandatory violent behavior warnings, was introduced in the U.S. House of Representatives on Monday. It is (especially as bills go) very short - four paragraphs, with a bite-size format that suggests its readiness to be attached as a rider to other legislation, perhaps an appropriations bill more likely to pass without much debate. If the language finds its way into law, then a sensible means of informing buyers about the content of their software may be amended by mandate with a statement with which some scientists are not in agreement.