Without having a date on the quote, it’s hard to know exactly which three decades he’s referring to,
He published that in 1993, which was about at the historic peak of violent crime in the US since 1960. The situation has improved a lot since then, but through the decades of 1960-1990, things looked pretty grim.
He published that in 1993, which was about at the historic peak of violent crime in the US since 1960. The situation has improved a lot since then, but through the decades of 1960-1990, things looked pretty grim.
Good to know. Updated.