As more and more places legalize and regulate cannabis, the wider implications of bringing the trade above ground have inevitably attracted scrutiny. A growth in tourism related to the drug is one such implication, and it's dividing opinion. It's time to shift the focus away from blanket opposition to legalization based on fears that it will lead to an influx of troublemakers intent on getting high. A regulated market would give policymakers the tools to combat -- or encourage -- cannabis tourism, as they see fit. The alternative is to allow organized criminals to continue managing the trade.