Whiskey with a distinctive brogue: Scotch is a booming international phenomenon; exports of this golden, peaty liquor from Scotland have doubled over just the past decade. What's behind the demand? Maybe its manly reputation as the fiercest of liquors, or its nearly infinite variations, from smooth and buttery to sharp, smoky, peaty or even salty. Yet they're all distilled from the same basic theme of grain alcohol aged in oak. In Scotland.