"When Ghana won its independence from Britain in 1957, it instantly became a target for home-grown opportunists and rapacious Western interests determined to snatch any assets that colonialism hadn't already stripped. A CIA-funded military junta ousted the new nation's inspiring president, Kwame Nkrumah, then falsely accused him of hiding the country's gold overseas. Into this big lie stepped one of history's most charismatic scammers, a con man to...