These are some incredible statistics from TIME magazine:
Police in the U.S. are almost always armed, yet over 225 died in the line of duty in just one year - ONE YEAR! - compared to about 70!! unarmed bobbies in Britain who died in the last 30 YEARS!!!
And furthermore, avoiding an arms race with criminals (virtually all guns are illegal in the U.K.) has helped keep Britain's firearm-murder rate to less than one-thirtieth the U.S. level.