Trump's war on science: how the US is putting politics above evidence

Experts say the administration is blatantly dismantling proven programs, and the consequences could be dire

Donald Trump's administration is cutting programs scientists say are proven to protect Americans, from pollution safeguards to teen pregnancy prevention and healthier school lunches, with effects that could last for years.

Experts who have worked in the federal government under Republicans and Democrats say both have sometimes put politics ahead of science but none have done so as blatantly as Trump. And they warn the consequences could continue long into the future.