Hard to get exact, up-to-date numbers to make international comparisons, but generally looks like the U.S.'s crime rate is about normal for a developed country, but the murder rate is very high because of the prevalence of guns here, which is a tough problem to solve (I really don't see restricting sales as being effective, or not without an extremely long lag, because there are so many already in circulation, plus technological changes will make it impossible). But our approach to criminal justice does suck. We should catch a much higher percentage of people committing crimes and put them away for shorter times (and also treat them much more humanely than we currently do).