如果禁枪, 那能容许他有刀吗?
世界上的事,都是Dynamic的. 看人们用什么框框去定义了.
最进重温量子物理学, 读到Heisenberg uncertainty principle. It is philosophically similar to this gun control thing, one does not know the electron presents wave characteristiocs or particle characteristic until one uses particular frame to measure it.
You do not know a guy is a good guy or bad guy (or a good guy performed a bad act) until he does it.
There is no solution since we are all humanbeings.