Are We In for Another High-Crime Era After the Response to Ferguson and Baltimore?

"Are we seeing a reversal of the 20-year decline in violent crime in America? A new nationwide crime wave?
Heather Mac Donald fears we are, and as a premier advocate and analyst of the policing strategy pioneered by Rudy Giuliani in New York City and copied and adapted throughout the country, she is to be taken seriously. And the statistics she presented in an article in last weekend's Wall Street Journal are truly alarming."