Book excerpt: Fully updated fourth edition. The Middle East is perhaps the most tumultuous area on earth, with ancient battles still being fought. This updated guide offers an intense look - through the lens of present-day knowledge - at current events and the everchanging political and social landscape, as well as the region's history. And it addresses: ?The re-arming of Hezbollah ?Iran's increased threat of acquiring nuclear weapons ?The odds of Palestinian unity in peace talks ?The evacuation from Gaza