Forbes Magazine, famed for its exhaustive lists, has a new one: America's safest cities. The unusual thing about this list is that the list-makers used more than just violent crime statistics to assess the relative safety. Also among the data collected are the number of workplace fatalities, deaths by traffic, and deaths by natural disaster. San Francisco ranks #25 in the list of 40 major metropolis regions,behind New York (#8), Detroit (#12), Chicago (#15), and Los Angeles (#19).