Australia, still the lucky country.

In all my years of teaching, I have never been in a school where the doors had to be locked once the children were inside. All schools at which I taught, had many open doors; people from the community, as well as parents and grandparents were welcome to call in at any time. What is it with the USA that schools have to be locked like prisons? And, even so, a locked door didn't prevent this latest tragedy.
The other thing about Australia is that, although there are guns in the hands of some, they are either guns used for legitimate (legitimate hunting? What's that? Just another way of killing, I suppose, but innocent animals)...well, guns in Australia are either used for (let's call it) "legitimate hunting" or are in the hands of criminals such as drug dealers or other sorts of drug runners. Low lives they may be, but I cannot entertain the thought that a person in Australia, even a deranged one, would go into a school and blow small children to pieces.
After all, the assault rifle used in USA, was (apparently) capable of firing hundreds of rounds of ammunition. Why on earth would anyone have such a weapon? WHY?
Some years ago, after a terrible massacre in Tasmania, the Prime Minister of the day (John Howard) called a gun amnesty and thousands of gun owners gave up their weapons to (hopefully) enable us to live in a safer country. It was a good move, but, even so and, even in Australia, there were some people who thought it was a threat to their "right" to own a gun.
However...we, in Australia, are a fortunate lot for not having a gun culture like the one in USA.
We can only hope that Barrack Obama takes a lead and goes against the gun fanatics and makes it illegal to own (at least) the most powerful of these weapons. Please?