You know those ads produced by the White House Office of National Drug Control Policy and urging kids not to use marijuana? The feds have spent well over one billion dollars on the ads since 1998. Yet, as Slate reports, a government-funded study found that the ads actually increase the likelihood that teenagers will use marijuana. Worse, the ONDCP initially sat on the study for over a year, while continuing to fund the ads, and now claims the results are dated. Your tax dollars at work.