Nature's Stock Exchange - Naked Scientists NewsFLASH - 15.08.11

In this NewsFlash, we meet the deep-sea microbes that feed on the hydrogen from hydrothermal vents, and discover a cheap new catalyst that can generate hydrogen ten times faster than methods found in nature. Plus, how reprogrammed immune system cells can kill cancer, and nature's stock exchange - how plants and fungi develop a free-market economy for shared resources.