Anti-violence laws must be comprehensive, says former Speaker of the House
Congressman calls for $5k fine for sale of adult rated games to underage customers
Senator plans to reintroduce bill within a month
National Academy of Sciences would be tasked to study effects of violence in games and other media
H.R. 4204 calls for label on all games rated E and up
Potential for 'unintended consequences' makes industry trade body drop backing
Browser games studio Night Owl Games backing lobbyists
Lack of consensus could scupper bill as White House and games industry giants pull backing
