Because the liquor is worth more to the government than beer or wine. Uncle Sam takes an excise tax of $2.14 for each 750-milliliter bottle of 80-proof spirits, compared with 21 cents for a bottle of wine (of 14 percent alcohol or less) and 5 cents for a can of beer. No one knows exactly how much money changes hands in the moonshine trade, but it’s certainly enough for the missing taxes to make a difference: In 2000, an ATF investigation busted one Virginia store that sold enough raw materials to moonshiners to make 1.4 million gallons of liquor, worth an estimated $19.6 million in lost government revenue. In 2005, almost $5 billion of federal excise taxes on alcohol came from legally produced spirits.

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