I'm sure that the difference between a semi-automatic and an automatic weapon made a huge difference to the 40+ victims at Virginia Tech and Columbine. I believe that semiautomatic weapons, purchased legally, were used in both massacres. Do you think they found those weapons to be fun?? Or the eight year old boy who accidentally killed himself at a gun show this past October when he lost control of the Uzi they let him try. I'm sure that was FUN!