"What is that", you ask.
I hadn't heard of it until a couple of years ago either, which is strange.
The Red Ribbon Coalition site claims:
Red Ribbon Week began after the kidnapping, torture and brutal murder of Drug Enforcement Administration (DEA) Agent Enrique "Kiki" Camarena in 1985.
The following year the California State PTA adopted the Red Ribbon Week campaign. Then, in 1988, Red Ribbon Week was recognized nationally with President Ronald and First Lady Nancy Reagan serving as the first Honorary Chairs.
Today, the Red Ribbon Week brings millions of people together to raise awareness regarding the need for alcohol, tobacco and other drug and violence prevention, early intervention, and treatment services. It is the largest, most visible prevention awareness campaign observed annually in the United States.
So I ask, have you ever heard of this campaign, DearReader? Ever participated in any events at your kids' school or what not?