WALLA WALLA — Walla Walla county commissioners have voted to expand a ban on pot business operations to include medical marijuana. The Union-Bulletin reports that the commissioners’ decision Monday to implement the new ban replaces

States with medical marijuana laws have fewer traffic fatalities than those without, especially among younger drivers, a new study found. You would think crash rates might be higher, supposing that more drivers are, too —

  CHICAGO — U.S. women are increasingly using marijuana during pregnancy, sometimes to treat morning sickness, new reports suggest. Though the actual numbers are small, the trend raises concerns because of evidence linking the drug

TORONTO — Canada’s government said Tuesday it would study a federal task force’s recommendation that Canadians over 18 years old be allowed to buy marijuana for recreational purposes and would announce new laws in the