They might be at historic lows, but crime rates in the US, particularly gun-related crime, remains absurdly high when compared with the rest of the world. You can compare the gun deaths in the US with the gun deaths in 12 or 13 other countries whose populations sum to be approximately that of the US and note that the gun deaths in those countries are significantly lower.
US inflation rates are very low right now (~1% for 2013): http://www.usinflationcalculator.com/inflation/current-infla...
Crime rates in the US are at historic lows: http://usnews.nbcnews.com/_news/2012/06/11/12170947-fbi-viol...