The crime rate has been dropping for 13 years. But the proportion of young men who grow up unsocialized and who, given the opportunity, commit crimes, has not.
A rough operational measure of criminality is the percentage of the population under correctional supervision. This is less sensitive to changes in correctional fashion than imprisonment rates, since people convicted of a crime get some sort of correctional supervision regardless of the political climate. When Ronald Reagan took office, 0.9% of the population was under correctional supervision. That figure has continued to rise. When crime began to fall in 1992, it stood at 1.9%. In 2003 it was 2.4%. Crime has dropped, but criminality has continued to rise.