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physicsworld.comNews & AnalysisPolicyUS changes course on nuclear-weapons strategyUS President Barack Obama has signalleda new approach to nuclearweaponspolicy that limits their useagainst other states and documentshow the country will ensure the viab -ility of existing stockpiles. The Nuc -lear Posture Review (NPR), whichsets out the US’s nuclear strategyover a 10-year period, also calls for ahighly skilled workforce to ensure“the long-term safety, security andeffectiveness of the nuclear arsenaland to support the full range of nuc -lear-security work”.The last NPR was conducted in2001 during the George W Bush ad -ministration, which kept its findingsclassified. The latest review, releasedlast month and made fully public, concludesthat the US will not use nuclearweapons against non-nuclear statesthat are “in compliance” with theNuc lear Non-proliferation Treaty,even if they attack the US with biologicalor chemical weapons. How -ever, the review makes it clear thatNorth Korea and Iran do not fall intothat category.Carried out by the US Departmentof Defense and the Department ofEnergy, the review notes the need forhighly trained scientists and engin -eers to “sustain a safe, secure andeffective US nuclear stockpile as longas nuclear weapons exist”. It alsosays that existing nuclear weapons’lifetimes could be increased, rulingout the need for manufacturing new“reliable” replacement warheads.This had been recommended late lastyear by the JASON advisory group –a collection of independent scientistswho advise the US government onscience <strong>issue</strong>s.Some disagree with Obama’s decis -ion not to update the US’s nuclearweapons. “I think the administrationSigning upUS President BarackObama and RussianPresident DmitryMedvedev havesigned a newagreement onnuclear weapons.Chuck Kennedyhas made a mistake by not supportingthe [production of] reliable replacementwarheads,” says Jay Davis,found ing director of the DefenseThreat Reduction Agency and a formerLawrence Livermore NationalLaboratory scientist who is now presi -dent of the Hertz Foundation.Immediately following the review,Obama and Russian President DmitryMedvedev signed up to the START-IITreaty, which will dramatically reducethe number of deployed nuclearweapons that each country has from1762 to 1550 for the US and 1741 to1550 for Russia. Although the Senatemust ratify the treaty by a two-thirdsmajority before it can come into force,it was welcomed by JASON memberSidney Drell, a senior fellow at Stan -ford Uni versity’s Hoover Insti tutionand former deputy director of theSLAC National Accelerator La bor at -ory. “Re ducing the reliance on nuclearweapons and reaffirming the commitmentto go to zero is a strong and goodbasis,” he says. “And the commitmentto continued support for a science andtechnology base is important.”Peter GwynneBoston, MAUK parties spell out science policies ahead of 6 May general electionConservativesAdam AfriyieShadow minister forinnovation, universitiesand skillsBackground: After a BSc inagricultural economics fromImperial College London, in1993 Afriyie became founding director of ConnectSupport Services – an IT services company. Afriyiewas elected as MP for Windsor in 2005. After servingin a range of committees on civil aviation and onscience and technology, he was made Conservativeparliamentary leader for technology, media andtelecoms in 2006 and then shadow minister forinnovation, universities and skills in 2007.Pearls of wisdom: “Our science base is a valuablenational asset. Economically, politically andsocially, it underpins the prosperity and wellbeingof our nation.”What the manifesto says: “Initiating a multi-yearscience and research budget to provide a stableinvestment climate for research councils.”Manifesto wordcounts: science/scientists (8);innovation (8); research (9); universities (14);physics (0)LabourPaul DraysonMinister for science andinnovationBackground: Draysoncompleted a BSc inproduction engineering atAston University in 1982,gaining a PhD in robotics in 1985. After becomingmanaging director of Lambourn Food Company in1986, he co-founded the Oxford-based vaccinecompany PowderJect Pharmaceuticals in 1993,where he was chairman and chief executive until2003. In October 2008 he was appointed as theminister of state for science and innovation, takingup a seat in the cabinet. In June 2009 he took onadditional responsibilities as defence minister.Pearls of wisdom: “Science isn’t peripheral to thedecision facing the country. It is central: to growth,to prosperity and wellbeing.”What the manifesto says: “We are committedto a ring-fenced science budget in the nextspending review.”Manifesto wordcounts: science/scientists (6);innovation (11); research (7); universities (17);physics (0)Liberal DemocratsEvan HarrisLiberal Democratsspokesperson for scienceBackground: Evan Harris is aqualified doctor, havingcompleted his education atthe Oxford Medical School.After working as a junior doctor at theRoyal Liverpool University Hospital and theJohn Radcliffe Hospital in Oxford, Harris became anMP for Oxford West and Abingdon in 1997. In 2001he became shadow secretary of state for health,and since 2005 he has been the Liberal Democratspokesperson for science.Pearls of wisdom: “We recognize that science,technology and engineering have to be key driversof our economy as we move out of recession.”What the manifesto says: “In the current economicclimate it is not possible to commit to growth inspending, but the Liberal Democrats recognize theimportance of science investment to the recoveryand to the reshaping of the economy.”Manifesto wordcounts: science/scientists (12);innovation (5); research (9); universities (8);physics (0)Physics World May 201011

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