now, this brings us to why abia is happening. thanks to the incredible work of a lot of american face groups, and i mean, jews, christians, muslims, they shine a light on what was happening in south sudan, the fact that from 83 onwards there's been this merciless campaign of ethnic cleansing, and they eventually got the united states government to focus on what was happening there. this is an example of what we can achieve when we actually put our minds to it, and when there is international political will. because of america, the people in khartoum were eventually pressured into having peace talks going into a whole negotiation that dragged on for years, of course, but eventually in 2005, they signed what's calls the comprehensive peace agreement which was neither comprehensive nor has it led to peace, but nevermine. they decided on a border around south sudan, but the problem with this is the people in khartoum who run the regime, it would be wrong to think of them as a caricature or african dictatorship. these are very shrewd

and uslly what saudi abia wants, iet goes. 's the biggest member of opec, t mo powerl, the world biggest l exporter. a so usually tey'reable to ing the other countries behind them and get them to go along with what ty want. not ts time. as you were saying i yo introduio there was a coitioof countrieses, obably lead by iran but with a mber of very oth, a number of other countries ve prominent in there, venezue, another notoriou opec hard-liner but also some couries thatyou might thinof rather me centrist and moderate includi angola and iraq, actuay al ti ainst thi nd geria,nother o one--lgeria, all opping th saudiroposal sayi they didn't want prices to-- they wern't going to produce more oil so it wa defeated. >> how much othis was ove dierences inhe ecomics f he world oil market and ho much was driven by politics? >> both. and the two thin i think very mucplay together. on the economic side, tre re differencesf interest terms of the way the oil mart works but a t of the countries ceainly this is true ofran and venezuela, ty're