(Joe Ahlquist | The Argus Leader via AP, File) In this Oct. 16, 2015, photo Jonathan Hunt, vice president of Monarch America, Inc., shows a marijuana plant while giving a tour of the Flandreau Santee Sioux Tribe's marijuana growing facility, in Flandreau, S.D. "In Arizona, Mississippi, Montana, New Jersey and South Dakota, voters decisively passed measures liberalizing marijuana laws," writes New York Times columnist Nicholas Kristof. "Marijuana will now be legal for medical use in about 35 states and for recreational use in 15 states."