Turns out the the "World's Greatest T-Shirt Salesman" is a murderer -- though anyone who puts historical fact ahead of "chic" already knew that. This, from an email from The Independent Institute: Ernesto "Che" Guevara (1928-1967), the Argentina-born revolutionary who helped Castro come to power in Cuba, has long been lionized by the hard left. Guevara's posthumous popularity has accelerated in recent years -- especially since the 2004 release of "The Motorcycle Diaries," a feature film based on his early autobiographical writings -- making him a crossover superstar whose likeness appears on countless T-shirts, posters and tattoos, and who has been cited as an inspiration for political dissidents from Latin America to Lebanon to Hong Kong. Yet the reality of Che Guevara's life is far different from the popular perception, as Independent Institute Senior Fellow Alvaro Vargas Llosa explains in a new article in the July 11 & 18 issue of THE NEW REPUBLIC. It's safe to assume that many people now sporting radical-chic Che T-shirts oppose capital punishment, but Che Guevara served as an executioner for Castro, as Guevara himself admitted in some of his diary entries, notes Vargas Llosa, author of LIBERTY FOR LATIN AMERICA. Guevara, for example,...