Let me give you some third world BS POV about firearms free trade, and in bad English too
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I don't think that any other country can legalise firearms sales like the US do, without major consequences, I don't know how they do it, I guess it's been a tradition for ever there, so the masses got used to it, and yet it is still causing them heck of trouble.
In the totalitarian countries, we have tremendous restrictions, even on hunting rifles and knives, of course you can buy a cheap knife anywhere, but even that can get you to go to jail for 6 months if police finds you carrying one. Arms and amos you need to have very good reasons to get licenses to poses or carry and they will make a complete background check .. etc, to finally get a hunting license. Black market sales did exist, but i think it was the government running it, and across all the neighbouring countries. Arming for self-defence is not a culture in here (like it is in Yemen), here it was -and still in most parts- a government job only, though the laws was and still is to be neglected easily when it concerns someone close to someone in the big money and government officials club. I myself have never hold or used or owned a hand gun or an assault rifle to this day, I vaguely remember at high school when we used to have military training classes two or three times a week, some of them were about dissemble and reassemble the AK-74 rifle, maybe they made us do it once in one of those classes or not, I don't remember if I have done it or not, but I do remember the rifle being demonstrated in front of us in the class room many times, and I remember that once i was told to bring it from the principle's office and i had fun holding it all the way to our class room, then one year I heard that my class mates had AK-74 shooting class at summer camp which I weren't invited to and I assumed it was because I didn't join the ruling party like the others, and apparently i lost my chance to learn computer after school classes with them for the same reason. Anyway, i had a chance to practice a lot of hunting when i was young in our village at the mountains at summer vacations, i used airguns, hunting rifles 9 mm and 12 mm, old style hunting rifles (don't know it's name) the one that you push stuff inside the barrel with a stick thing, all were very old arms ownership from like 50 years ago from before the last government era was started. Later I had the luck -and the money- to skip serving in the army, which is a very difficult thing to manage, so i lost my chance for shooting training there too, as I followed the idea that spreaded around here back at the late 90s and early 2000 that serving the army was mostly a waste of two and a half years of a young man's life, but all the other approximately 80 - 90 % of the male population had to serve the army and learned all the necessary skills to know how to kill each others and destroy the country later when the civil war starts, though not all the people involved in the war now have served in the army, as there are many youngsters and foreign fighters among other kinds of freaks show.
Syria 5 years ago was one of the safest countries if not the safest ever, but on the price of a lot pressure on freedoms and justice ...etc, but you know what, there isn't anything different between Syria then and now, aside from the half million casualties and cities and towns and economy destruction, all the reasons for that were exactly the same then as it is still now, all the hatred and divided beliefs and ignorance and selfishness and lack of loyalty to the general interest .. etc, all that existed before the war, but the only thing that didn't exist before the war is the spread of arms in the hands of people, like it is the case now after the borders collapsed, now -to who don't know- there's everything available to all the crazy heads fools, from tanks, missiles, mines, bombs, laser guided rockets, light chemical weapons ...etc, everything needed for the religious charged inhabitants to impose their free will. So, is it better now that people have the privilege of owning what ever weapons of choice?
History or something gave the Syrians the chance for free will to express themselves and most of them especially the ignorants turned it into an Islamic Jihad pandora's box, under the encouragement from the Gulf states and Turkey.
I know your countries and societies are hundreds of years ahead of ours in education and culture and modernity ... etc, and it can handle lots of things like the variety of freedoms, even the freedom of guns and arms possession, but why the risk, arms have the ability to make any situation a lot worse, you have a lot of immigrants and unemployment among other problems, you saw what happened in 2011 in the streets and marketing stores in London, even somthing unexpected like weather storms might cause chaos, why would you like the free arms trade like US, if you like arms simply join Law agencies or military or shooting clubs or something, better for you and for your kids safety and future.
I'm deep inside a stupid warrior just like the next person, I would love to have access to arms and advanced equipment, but it has to be very strict and organised, I think the EU peaceful way of life is the way forward not the US cowboy ways.
As for leaving the EU, when were you in it anyway? Don't know the details, but would be nice if you can keep up what you have now for agreements. Anyway, if you decide to stay or leave, i don't think it will make much difference, although i have no idea which way the economy is to be shifted.
Of no relevance at all to the "gist of the contents this thread" but one of Norway's Sovereign Wealth Funds is now worth over "800 Billion Dollars" 
but I am going to vote to elect some Norwegian common sense thinkers into Westminster. 
Phil
Phil
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but it's all more knowledge for you when you might fall victim to being enrolled in any pub quiz