Hmm, interesting, I would have figured that.

Alright, lets say I were to pack the marijuana(or any other drug) in a glass vial, seal up tight. Wash it in a washing machine, take a long shower, wash all my clothes, get on a plane tomorrow and encounter a drug sniffing dog in the airport. Would I have enough scent on me for the dog to finger me out?

I would doubt it. Dogs aren't superman. I wouldn't think it would be a big risk if you knew what you were doing. I wouldn't do it though, actually I might, depending on the penalty and how badly I want to smuggle it. It doesn't sound very hard in theory... But who knows.

Then again, people have gotten the stuff into maximum security prisons, think about that.