Montana group halts its cannabis caravans

A Montana advocacy group is shutting down its traveling medical marijuana clinics amid criticism that the so-called cannabis caravans have added thousands of people to the state registry without conducting thorough patient screenings.

The Montana Caregviers Network has hosted the one-day clinics in hotels and conference centers across Montana for more than a year. For a $150 fee, the group brought together those seeking to become medical marijuana patients with doctors willing to prescribe pot.

Starting next week, the group will forgo the clinics and instead team up with medical marijuana dist...