Chinese Knife Rampage

2010
2012:
22 Kids Slashed in China Elementary School
BEIJING – A Chinese man went on a rampage at an elementary school in China slashing 22 children and one adult with a knife.
The injuries were gruesome, and reportedly include cut-off fingers and ears. No one however was mortally wounded.
Private ownership of firearms is banned in China and are permitted only for hunting and only with permission. Knives have become the weapon of choice to commit violence with in China.
Min Yingjun, 36, was arrested for the knife attack at Chenpeng Village’s Wanquan Elementary School on Friday morning. Local officials said he may be suffering from a psychological illness.
On Thursday, a Chinese man was arrested after cutting the faces of several female passengers on a Beijing subway, China Daily reported.
The man, whose surname is Hu, allegedly wanted “revenge on society” after being scorned by a former girlfriend.
http://www.nodeju.com/33146/22-kids-sla ... chool.html
http://abcnews.go.com/blogs/headlines/2 ... fe-attack/
Considering that knife attacks on crowds of people are an established problem in China, should the Chinese government consider banning knives?
Also,
Why don't we see these kinds of attacks in other countries where knives are legal?