The first thing you should know about Fielding's The World's Most Dangerous Places is that it is not a comforting book. Its pages bristle with tales of land mines, war zones, terrorists, mercenaries, mafiosi, massacres, kidnappers, drug smugglers, and all the other unpleasant travel disasters that are the stuff of nightmares. But then, as the editors point out in their foreword, "as travelers are kidnapped and executed in Cambodia, a recognized dangerous place, they also are hunted down and murdered in Los Angeles." In other words, the most dangerous thing in the world is ignorance.