This is fairly arbitrary, defining safest based on violent crime, workplace deaths, fatal crashes and natural disasters. Why assume that a robbery is as bad as a murder or an aggravated assault is as bad as a murder? Most violent crimes involve aggravated assaults that, not murder, will drive that part of the ranking. Why include work place safety but not accidental deaths of other types? The list of the top forty cities is available here
. Thanks to Craig Newmark's website
for the tip.