The Myth of 90 Percent: Only a Small Fraction of Guns in Mexico Come From U.S

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You've heard this shocking "fact" before -- on TV and radio, in newspapers, on the Internet and from the highest politicians in the land: 90 percent of the weapons used to commit crimes in Mexico come from the United States.

-- Secretary of State Hillary Clinton said it to reporters on a flight to Mexico City.

-- CBS newsman Bob Schieffer referred to it while interviewing President Obama.

-- California Sen. Dianne Feinstein said at a Senate hearing.

-- William Hoover, assistant director for field operations at the Bureau of Alcohol, Tobacco, Firearms and Explosives, said it in the House of Representatives.

There's just one problem with the 90 percent "statistic" and it's a big one:

It's just not true. In fact, it's not even close.

By all accounts, it's probably around 17 percent...

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