Not every nations police forces are trained to shoot knife wielders as readily as American cops do
It’s funny....well not really
What is the exoneration percentage on cop shoots?
99.99 I’d guess
Yes, in London they give the knife killers a head start:
http://www.zerohedge.com/news/2017-06-03/van-rams-pedestrians-serious-incident-london-bridge-knife-attack-follows-live-feed