I can hear it just fine.

All you pro-meth people commenting must be twacked out of your minds right now. For the past 5 years of my life I have been struggling with every drug addiction you can throw my way with the exception of crack, and I can honestly say that while the addiction part of narcotic drugs such as heroin and painkillers was harder to overcome than the strong mental addiction of meth, the physical effects of meth were worse tenfold than those of any other drugs. All these people you mention, mechanics, dennys employees, and teachers on meth, yes, they do exist. Calling them functional, however, is a fallacy. I worked at jiffy lube, and I currently work at a dennys, I've also had a myriad of other jobs in my life, and when these employees were NOT working, they were doing drugs at work on the job site or in the bathroom or what have you. And the "teachers" on drugs? I used to have one of those as a roommate as well, and she got fired for smoking cigarettes on the playgroud. Anyone ignorant enough to be fooling around with a drug like this is not to be glorified or called functional, because I guarantee in the end the drugs will get them. And while not everyone has the "faces of meth" qualities to the extreme, it is fairly easy to point out someone who uses meth even slightly, because over a period of time you start to form very distinct wrinkles and facial features. The main point of the documentary is that meth is bad, and if you are going to argue with that fact, you are in fact a fool.