In this issue: COMMENT "Team Effort", by George Packer: President Obama's dilemma in Afghanistan. THE FINANCIAL PAGE "Greater Fools", by James Surowiecki: The dangers of financial illiteracy. THE TALK OF THE TOWN "Fashion Emergencies", by Judith Thurman: Wardrobe surgery by Junky Styling. LETTER FOM SOUTH AFRICA "The Third Man", by Charlayne Hunter-Gault: After Mandela and Mbeki, Jacob Zuma tries to govern South Africa. PROFILES "First Banana", by Tad Friend: Steve Carell and the meticulous art of spontaneity. POP MUSIC "Dancehall Dreams", by Sasha Frere-Jones: Robyn’s versatile pop. THE CURRENT CINEMA "Thrills and Chills", by David Denby: Reviews of Knight and Day and Winter's Bone.