Arizona Republic:  “An effort is building in Congress to change U.S. marijuana laws, including moves to legalize the industrial production of hemp and establish a hefty federal pot tax.  While passage this year could be a longshot, lawmakers from both parties have been quietly working on several bills, the first of which Democratic Reps. Earl Blumenauer of Oregon and Jared Polis of Colorado plan to introduce Tuesday, Blumenauer told The Associated Press.”