percent were addicted to heroin. "The Nixon White House panicked," wrote political editor Christopher Caldwell, and declared drug abuse "public enemy number one". By 1973, there were 1.5 overdose deaths per 100,000 people. Modern prescription opiates such as Vicodin and Percocet entered the market in the 1970s, but acceptance took several years and doctors were apprehensive about prescribing them. Until the 1980s, physicians had been taught to avoid prescribing opioids because of their addictive nature. A brief letter published in the New England Journal of Medicine (NEJM) in January 1980, titled "Addiction Rare in Patients Treated with Narcotics", generated much attention and changed this thinking. A group of researchers in Canada claim that the letter may have originated and contributed to the opioid crisis. The NEJM published its rebuttal to the 1980 letter in June 2017, pointing out among other things that the conclusions were based on hospitalized patients only, and not on patients taking the drugs after they were sent home. The original author, Dr. Hershel Jick, has said that he never intended for the article to justify widespread opioid use. In the mid-to-late 1980s, the crack epidemic followed widespread cocaine use in American cities. The death rate was worse, reaching almost 2 per 100,000. In 1982, Vice President George H. W. Bush and his aides began pushing for the involvement of the CIA and the US military in drug interdiction efforts, the so-called War on Drugs. The initial promotion and marketing of OxyContin was an organized effort throughout 1996–2001, to dismiss the risk of opioid addiction. Purdue Pharma hosted over forty promotional conferences at three select locations in the southwest and southeast of the United States. Coupling a convincing "Partners Against Pain" campaign with an incentivized bonus system, Purdue trained its salesforce to convey the message that the risk of addiction was under one percent, ultimately influencing the prescribing habits of the medical professionals that attended these conferences. Consulting firm McKinsey & Company reached a nearly $600 million settlement with 49 of 50 U.S. states in 2021 over the firm's role in driving opioid sales for Purdue Pharma and other pharmaceutical companies. In 2016, the opioid epidemic was killing on average 10.3 people per 100,000, with the highest rates including over 30 per 100,000 in New Hampshire and over 40 per 100,000 in West Virginia. According to the Substance Abuse and Mental Health Services Administration's National Survey on