Univision: The untold story of what 'Fast and Furious' wrought in Mexico

When a journalist for Univision asked President Obama last week why he hasn’t fired Attorney General Eric Holder over the “Fast and Furious” gun walking fiasco, the reporter, it turns out, had an inside scoop that added urgency to the question. At 7 p.m. on Sunday, Univision says it’ll air…

Watch a preview of Sunday night's special investigative report below:

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