The validity of the statistic that gun crimes/deaths are high in america? There are lots of graphs and means that show direct correlations between the countries that have legal firearms and crimes involving them. This study actually has some pretty shocking statistics: http://www.bu.edu/news/2013/09/13/new-research-shows-link-between-rates-of-gun-ownership-and-homicides/ You can use google to look at stuff in your own time. I guess based on these kinds of studies I believe that no guns equates to less murder/death. Guns and knives are both dangerous. It's not actually legal to walk around the UK with a big knife you know. Lock knives are illegal too. Edit: I'm from the UK.