Pretty remarkable numbers. Did you know that crime has been cut in half in the last twenty years? Me neither. One small quibble at the end. He cites three reasons for high crime in densely populated areas: poverty, jobs and education. But, without a change in the culture, inner city youths will not value education or embrace the so called "Protestant work ethic" even if jobs are available.
He is correct that this is not a problem with a 'one size fits all' solution.