60 Minutes did a piece on the "failure" of cleantech investments. Some people, including Vinod Khosla who was interviewed for the piece, take issue with it.
http://www.cbsnews.com/news/cleantech-crash-60-minutes/
http://www.khoslaventures.com/open-letter-to-60-minutes-and-cbs/
http://www.siliconbeat.com/2014/01/...wers-critical-of-the-cleantech-crash-segment/
http://www.greenbiz.com/blog/2014/01/13/truth-about-60-minutes-and-cleantech-crash
http://www.cbsnews.com/news/cleantech-crash-60-minutes/
http://www.khoslaventures.com/open-letter-to-60-minutes-and-cbs/
http://www.siliconbeat.com/2014/01/...wers-critical-of-the-cleantech-crash-segment/
http://www.greenbiz.com/blog/2014/01/13/truth-about-60-minutes-and-cleantech-crash