Tens of thousands of people will attend Saturday's "4/20" rally in Denver, creating perhaps the largest collectively produced cloud of marijuana smoke ever at 4:20 p.m. But Lopez doesn't view this year's event as a celebration of Amendment 64, the pro-pot measure that voters passed in November. Instead, it is as much a protest against the measure. "It is still only a legislative act to create an economy and not to end a war that has destroyed thousands of lives." The people behind Amendment 64, likewise, are holding the rally at arm's length.