Though this has probably veered too far off-course to be useful, I think the point needs to be made that there was never a 'right' answer to the initial question about the impact of the drug trade on the war in Afghanistan.
To say, for example, that "no special procedures are needed on Canadian bases because of x, y, and z" or "Kandahar is different than the rest of Afghanistan because of x, y, and z" or, simply, "I've been there and never came across anything related to the heroin trade" is just as useful an answer as anything else; it's an entirely open-ended question - like asking if anyone here likes chocolate ice cream. To suggest there's some political considerations lurking in the background is a pretty staggering misinterpretation. I've spoken to several official sources, and the idea of coming here was simply to complement those findings with a view from the ground. If it's fair to say the heroin trade has zero impact on military operations in Afghanistan, then there's no reason for me to ever say otherwise.