Medical marijuana in Arizona went from pipe dream to reality, thanks to the grassroots movement by the pro-Prop 203 Marijuana Policy Project and its leader, Andrew Meyers. Meyers and MPP collected about 250,000 signatures last year to get the initiative on the November 2010 ballot. The measure passed by a narrow margin thanks to countless hours of campaigning by Meyers and other supporters. The future of the law is still in the weeds, but it's important to give credit where it's due. Congrats, Mr. Meyers.