THE SPEED TRADERS - Steve Kroft gets a rare look inside the secretive world of "high-frequency trading," a controversial technique the SEC is scrutinizing in which computers can make thousands of stock trades in less than a second. Tom Anderson is the producer.MANDELA - A collection of his memoirs, mostly from the 27 years he spent in prison, reveal the innermost thoughts of the international civil rights giant Nelson Mandela, whose movement brought down the apartheid regime of South Africa. Bob Simon reports. Michael Gavshon and Drew Magratten are the producers.EMINEM - Anderson Cooper profiles the chart-topping rapper from Detroit who overcame addiction to reclaim the winning style that made him the biggest selling artist of the past decade. Tanya Simon is the producer.