Correlation is not causation…

but it can certainly give you a clue that there is some kind of relationship between two factors, even if it’s an indirect one.

Since 1980, the number of handguns has increased 50 percent, and the nation’s murder rate has decreased 52 percent. After Chicago imposed handgun registration in 1968, murders in the city increased.  After D.C. banned handguns in 1976, its murder rate rose 201 percent through 1991, while the U.S. rate increased 12 percent. After Chicago banned handguns in 1982, its murder rate increased 49 percent through 1994, while the U.S. rate decreased one percent. And in the year following the repeal of D.C.’s handgun ban, its murder rate decreased 24 percent. In sum, the number of handguns is at an all-time, and the nation’s murder rate is at a 45-year low.

Now, it is certainly possible that there are other factors influencing those numbers, but it’s also irrefutable evidence that the gun control crowd’s claims that gun bans reduce deaths are invalid. If they were right, Chicago and D.C. would not have had such a massive increase in murders after enacting their bans. That level of disconnect from the national average, so closely related in time to their bans, is very strongly suggestive of a causal relationship – and not the relationship the banners claim, either.

(h/t Sebastian at Snowflakes in Hell)

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