there are 90 guns for every 100 americans. that is the highest ratio in the world by far. the next highest country, by the way, is yemen, which has 60 guns for every 100 people. the united states owns 30% of all known guns in the entire world and more than 50% of all new guns made in the world are bought in america, which has of course 5% of the world s people. these are all statistics from a worldwide study called the small arms survey. so what is it that makes america so different? is it cultural? is it constitutional? and what does it have to do with arizona? we ve gathered a terrific panel to talk about these kinds of issues. bernard-henri levy is perhaps france s best-known public intellectual. he has a new book out called public enemies. mark ames is the author of a book that looks at why people in his words go postal. james taranto is a columnist for