Article quote...
Google settled with the government in August 2011, agreeing to pay a $500 million corporate forfeiture that was one of the biggest in US history at the time. As part of the agreement, the company acknowledged that it had helped presumably Canadian online pharmacies use AdWords as early as 2003, that it knew US customers were buying drugs through these ads, that advertisers were selling drugs without requiring prescriptions, and that Google employees actively helped advertisers circumvent their own pharmaceutical policies and third-party verification services.