According to the video above, the Bloomberg TV network will air Deadly Brew - The Human Toll of Ethanol, a documentary about the horrible labor conditions of Brazilian ethanol workers on January 24th (next Thursday). The video above includes lines like "the cars run on human blood" and the video ends with a shocking story of a man that died after cutting "45 tonnes" of sugar cane in one day (see related post here).
Many environmentalists and now even the EU have really backed off in their support for ethanol and are taking a very hard look at how it's made. While it can be sustainable, energy positive and include good labor practices, there are horrible cases like the ones Bloomberg will report on that have many questioning if ethanol is worth it. I will post a review of the documentary after it airs.