https://www.washingtonpost.com/news/post-politics/wp/2015/11/14/donald-trump-says-tough-gun-control-laws-in-paris-contributed-to-tragedy/ while i think their gun control laws violate people's basic right to self defense (regardless of what's written on any piece of paper), this needs to be stated carefully, which I think he has done. on the one hand, it certainly shows how when guns are outlawed only terrorists will have guns; this isn't a regional problem like US cities chicago, NYC and DC claim. the whole of Europe can have extremely strict laws and it doesn't prevent these situations at all. it's apparently not at all difficult to smuggle full auto rifles in. and you can argue as Trump states, that it contributes, because someone with a weapon could have slowed them down and prevented some loss of life. given the current counts of over 100 dead and over 300 wounded, if this had happened in Texas, those counts might have been a half or a quarter of that. but, otoh, we should be careful not to set expectations too high, as there's not really anything you can do with a pistol to stop a concealed explosive vest.