The Christian Science Monitor: “With recreational use of pot now legal in the state, in the first six months of this year 745 drivers stopped by police tested positive for THC. For all of last year, about 1,000 test positive for THC, the active drug in marijuana.  Significantly more drivers pulled over by police in Washington state are testing positive for marijuana since legalization of the drug’s recreational use took effect in January, according to figures released this week by the Washington State Patrol.”