A reminder to those who say the US needs stricter gun control (especially our European friends who may not be familiar with US law):
The US Constitution - the nation's highest law - guarantees the right to bear arms. This is the main problem with most proposed gun control measures; they would violate the constitution.
Right now, the only measure in place on a national basis is a background check to make sure the purchaser is not a convicted felon. However, there are venues (such as gun shows) which are exempt from even this check - not to mention the black market or stolen guns.
There used to be a ban on private ownership of assualt (i.e. military-grade) weapons, but that ban has expired. (Even when it was in effect, it wasn't very effective; it was written in such a way that it actually banned very few guns.) And such a ban would not have affected this killer, as he was reported to be using handguns.
The good news is that this killing is getting enormous amounts of press, and hopefully will lead to better gun control.
The other difficulty in getting better gun control is the enormous influence of the NRA (National Rifle Association). They can buy enough votes in Congress to neuter almost any legislation, like they did with the assault weapons ban. Money talks, and the NRA will spend millions to thwart any gun control efforts. Even if effective legislation passes Congress, it's almost certain Bush would veto it. So we may have to wait until we have a new (hopefully Democrat) president in 2009 before any decent law passes.
Many television commentators are saying that after the first 2 shootings, VA Tech should have closed their campus and sent students home from the classrooms where the remainder were killed. Anyone who has been to a large college knows that's almost impossible; you can't get a message out that fast to that many people in all those buildings. But one MSNBC commentator was on the right track when he noted that in this age of nearly everyone carrying a cell phone, some kind of quick mass alert ought to be possible.
So what really needs to come out of this is an emergency alert system for cell phones. Tell the phone networks to ring every phone at once. That will be noticed everywhere, and everyone will know something serious is happening. Even those without phones will hear all the noise and know. Then have a recording with the details which everyone hooks into when they answer their phones. A system like that might have saved lives in VA.