Easy, follow everything the Church teaches through the prism of what the Church is really intending to mean. So Pope Francis came out and pretty much smacked down this movement of legalizing illegal drugs. Of course legalizing drugs won't solve any more problems than it creates. So Pope Francis (who is always awesome) steps up and says the solution is elsewhere, not in saying 'just do it!'. And how is it reported by those warming up to a more progressive manifestation of good old Catholic living?
The Pope condemns legalizing Pot, but not really. How that wasn't condemning the movement, I don't know. Perhaps because he didn't actually say Pot. Maybe he didn't use the exact wording. Perhaps because he focused on getting at the core problems that lure people into drug use in the first place. In any event, what he obviously said is suddenly discarded for what he clearly means. Using any one of the above options, or perhaps others.
Of course when people said Pope Benedict prayed for peace when we bombed Libya, but didn't explicitly condemn the action, the action was OK - why they were the worst. Or the Church didn't say waterboarding, just torture, why it's heretics on the march! But you see, there's the trick. That's how you're always obedient. When you agree with the Church's statements, it's always what the clear and obvious teaching in black and white happens to be. But when you're a little uncomfortable? Why, that's when it's to between the lines we must turn. I always wondered how, with a living, breathing Magisterium, Catholics could so wildly disagree while insisting they're right and everyone else is wrong. Now I know!