What am I talking with a bunch of teenagers? Yes Columbine. Why are you telling me to "Chill out, dude"?
"Light guns were suppressed for a time in the U.S. after the 1999 Columbine High School massacre and its attendant controversy over video games and gun crime.[36] Since the late 1980s light gun controllers have been generally manufactured to look like toys by painting them in bright colours. In Japan, which lacks the gun crime found in the U.S. and in which civilians cannot legally own guns, more realistic light guns are widely available."
http://gaming.wikia.com/wiki/Light_gun