Americans have always loved risktakers. Like the Icarus of ancient Greek lore, however, even the most talented entrepreneurs can overstep their bounds. All too often, the very qualities that make Icaran executives special-- self-confidence, visionary insight, and extreme competitiveness--spur them to take misguided and even illegal chances. The Icaran failure of an ordinary entrepreneur isn't headline news. But put Icarus in the corporate boardroom...