The FDA has it on a list of banned imports because it may contain toxic substances; still, some are calling it the best soft drink in the world. Either way, it's got a great ad campaign.
Editorial note: Whoa! You've found a super-old post here on BuzzFeed, from an earlier era of the site. It doesn't really represent where we are anymore, and may in fact be totally broken, but we're leaving it up as a part of our early history.