Of the $1.1 billion in boxed chocolates that Americans are expected to buy on Valentine's Day, very little will be untainted by the scourge of child labor. Although some who buy those bonbons will do so without knowing the sinister history of their purchases, others, like the chocolate makers, will have known for at least two years, if not longer, that cocoa beans imported from the Ivory Coast -- used to make nearly half the chocolate consumed in this country -- are harvested in large part by children, some as young as 9, and many of whom are considered slaves, trafficked from desperately poor countries like Mali and Burkina Faso.

Bittersweet chocolate