A biofuels company set up by Shell in Brazil has scrapped controversial plans to source sugar cane from land stolen from an indigenous tribe...The company, Raizen, was established in 2010 as a joint venture of Shell and Brazilian ethanol giant Cosan to produce biofuel from sugar cane. But some of its sugar cane is grown on land claimed by the Guarani tribe, one of the most persecuted and impoverished in South America. Their leaders are regularly killed by gunmen acting for the sugar cane growers and cattle ranchers who have taken over almost all their land. Now Raizen has agreed to stop buying sugar cane from land declared as indigenous by the Ministry of Justice.