NobelPrizewinnerSirPaulNurseexamineswhyscienceappearstobeunderattack,andwhypublictrustinkeyscientifictheorieshasbeeneroded-fromthetheorythatman-madeclimatechangeiswarmingourplanet,tothesafetyofGMfood,orthatHIVcausesAIDS.Heinterviewsscientistsandcampaignersfrombothsidesoftheclimatechangedebate,andtravelstoNewYorktomeetTony,whohasHIVbutdoesn'tbelievethatthatthevirusisresponsibleforAIDS.Thisisapassionatedefenceoftheimportanceofscientificevidenceandthepowerofexperiment,andalookatwhatscientiststhemselvesneedtodotoearntrustincontroversialareasofscienceinthe21stcentury.（转自BBCTwo该节目官网介绍）