The BBC rounds up the influence of science on US presidents past as well and the current candidates. Science, says the article, informs presidential decision-making from energy policy, to war, to the conduction of research in the nation. Physicist Michio Kaku tells the BBC that grasping the science behind building atomic bombs could influence if or when a country goes to war. Nobel laureate Paul Nurse adds that the current stem cell research policy "is absolutely text book stuff of how not to get politics engaged with science." If you're in the UK, you can watch the report here.