Interview with Ezra Pryor, chair of the Cannabis Chemistry Committee at the American Chemical Society -- http://www.gopetition.com/petitions/petition-for-a-new-acs-professional-division-cannabis-chemists.html -- and president of EZ Chemistry Consulting -- http://ezchemconsult.com -- at the New England Cannabis Convention, Providence, RI (Reporter: Carissa Zabala, Producer: Michael Bilow)