"If we cannot destroy the drug menace in America, then it will surely in time destroy us," President Richard Nixon told Congress in a special message on June 17, 1971, which generally is credited as the day the "war on drugs" began. Actually, Nixon didn't use the term "war on drugs" in the address. He used it later. And while Nixon talked tough about going after drug traffickers, he emphasized that rehabilitation would be a priority as he dedicated the lion's share -- $105 million of $155 million in new anti-drug funding -- "solely for the treatment and rehabilitation of...