Legal marijuana draws crowds to US states

Events celebrating marijuana in the US this weekend are expected to draw tens of thousands as crowds test the limits of new laws permitting its use by adults.
More than 50,000 are expected to light up outdoors in Denver’s Civic Centre Park on April 20 to celebrate marijuana legalization. Thousands more are going to a Cannabis Cup event at a convention centre, including Snoop Lion, the new reggae- and marijuana-loving persona for the rapper better known as Snoop Dogg.