much of this, as Mali was not.       Wednesday 29 September 2010 By John Batchelor on September 29, 2010 9:20 PM Bristlecone pine grove: Methuselah and Prometheus, the oldest trees in the world. (credit: James R. Bouldin, Wikipedia )  Cohosts:  Gordon Chang, Forbes.com , and Jeff Bliss, The Bliss Index Wednesday