Rise of the warrior cop : the militarization of America's police forces / Radley Balko.

"Today's armored-up policemen are a far cry from the constables of early America. The unrest of the 1960s brought about the invention of the SWAT unit--which in turn led to the debut of military tactics in the ranks of police officers. Nixon's War on Drugs, Reagan's War on Poverty, Clinton's COPS program, the post-9/11 security state under Bush and Obama: by degrees, each of these innovations expanded and empowered police forces, always at the expense of civil liberties. And these are just four among a slew of reckless programs. In Rise of the Warrior Cop, Balko shows how politicians' ill-considered policies and relentless declarations of war against vague enemies like crime, drugs, and terror have blurred the distinction between cop and soldier. His fascinating, frightening narrative shows how over a generation, a creeping battlefield mentality has isolated and alienated American police officers and put them on a collision course with the values of a free society."--Publisher's website.