Where exactly do I make that assumption? You'll notice that I didn't even call for a blanket ban on guns, just that, as a nation, we could actually sit down and have a serious talk about whether people should be able to own weapons like this one for private use:
[EDIT: I regret posting the link to the rifle, there's clearly plenty of debate about it that detracts from the main topic of discussion- and we don't know any details for definite.]
If we really believed in the 2nd Amendment, people would be allowed to own serious weapons of war but not be allowed to own concealable personal firearms.
http://news.blogs.cnn.com/2012/12/14/shooting-reported-at-co...
http://hosted.ap.org/dynamic/stories/U/US_CONNECTICUT_SCHOOL...
"A law enforcement official in Washington said the attacker was a 20-year-old man with ties to the school and that one of the guns was a .223-caliber rifle."
Here's a semiauto rifle with the same calibre:
http://upload.wikimedia.org/wikipedia/commons/thumb/1/18/Min...
Would that one be more acceptable because it has a wood stock?
As a nation, we've decided that we don't want to restrict the rights of hundreds of millions of law abiding citizens merely because a few people misuse those rights. This is why politicians have generally decided not to push for more gun control - it's an election losing issue.
Incidentally, I'm confused by the point of that tweet. Here are some other .223 rifles:
http://s845.beta.photobucket.com/user/OldColdWarrior2009/med...
http://media.liveauctiongroup.net/i/9380/10373165_1.jpg?v=8C...
http://molot.biz/product-e/vepr223-super.jpg
For most calibers, you can find guns with many different form factors that accept bullets of that caliber. So what?
The sad truth is, oppressive regimes exist in the first place because more powerful nations benefit from it. My own country lived for 17 years under an oppressive regime backed by the gun bearing, world's freedom and democracy flagship.
[1] http://www.youtube.com/watch?v=hKsWGuLzsWk&list=PLC4FDC3...
Getting legal access to high-performance rifles similar to military weapons is pretty trivial. Easily concealable weapons like pistols usually are more difficult to get a hold of legally.
The legal environment doesn't always translate into reality. I live in a small upstate NY city where we unfortunately have lots of shootings, mostly between poor high school kids. The local drug gangs make "community guns" available in public places like parks.
I would never want to own one, but for someone like me to own a handgun for target practice, there's an onerous process. I'd be required to get training, get background checked and go through a permit application process. After that's done, it's up to a county court judge's discretion, and in this county, the answer is usually "No."
A mass of civilians aren't going to be able to stand up to a column of tanks easily, but just a hundred civilians armed with AR-15s are going to be able to stand up even to massed police forces. And if an insurgency is supported by the public at large then life is not going to be easy for the police and the military. This is the way that all guerrilla wars go, and there are many examples of successful insurgencies when they have widespread popular support, even against very well armed government forces.
However, the idiocy of the tweet, designed only to spread FUD, the mindless retweets and ignorant comments, really piss me off. A few people have pointed out that .223 is a calibur, or 'shell size', and one of the mindless retweeters said she thinks shell size is gun specific.
i mean WTF... such epic ignorance...
Pardon me, but I grew up in a country where 'oppressive regime' was not far off at all, and where brutal murders happened in my neighborhood all the time. I knew my Dad didn't own a gun and it scared me to death. So how dare you belittle my beliefs in the need for armed civilians. Disagree with them, by all means, but do you really think I'm arguing children should be murdered en masse?
What you're proposing is, in my opinion, that same thing as arguing that the government should regulate or perhaps even ban internet access because of all the child pornography. Screw civil liberties, think of the children!
edit: Also, I would argue that confiscating laptops at airports will save as many lives as trying to ban guns in the US at this point.
edit: In case it wasn't clear, I don't actually believe the South African government was doing what it claimed - but believe when I tell you we had no idea just how bad the government was until after it was all over. My point was that safeguards aren't always what you think they are, and they they won't always be there. You can't decide to give citizens rights only when the government decides they need them.
I'm just not buying it. Even with their massively over-inflated budget and their guilt-elimination drones there is no way the DoD could maintain an armed occupation of America. They are having a hell of a time doing it in a country less than one-tenth the size with less than one-tenth the people, filled with people who have been thoroughly dehumanized by popular media, people with far fewer connections to the outside world, and people for whom the soldiers have no tribal connections.
Thinking they would do better occupying America than Afghanistan is a really strange form of patriotic hubris.
(Lest you get the wrong impression, I support gun control and think that worrying about the possibility of Americans having to fight the American army is incredibly silly.)