A reader writes:

I just read your post about the reader who heard of the knife attack in China and pointed out the difference between that and Newtown. But there's another point to be made: whenever I've heard of the Chinese attack mentioned on cable news over the last few hours, it's to make the opposite point: the commentators have all said this is a sign that these attacks are international – the implication being that nothing can be done, not that the guns are at fault.

Another notes:

There is an entire Wikipedia entry dedicated to a spate of school attacks in China from March 2010 through 2011. They all involved blades of various types, as well as hammers. While today's attack in China resulted in zero fatalities, that series of six attacks resulted in 21 dead and some 90 injured.

For an average of 3.5 deaths per attack. Newtown alone is upwards of three dozen.

(Photo: Chinese policemen show teachers and school workers how to defend themselves during an attack, at a school in Beijing on April 29, 2010. Authorities across China have ordered stepped-up security at schools and increased police patrols near campuses after a wave of knife attacks targeting children. By Getty Images.)