President Joe Biden signed a presidential memorandum Wednesday to prevent political appointees from interfering with the work of career federal scientists. The memo, in addition to raising the profile of senior career officials at scientific agencies, seeks to increase transparency around agency research and regulations, and to make federal data sets more accessible to researchers and the public. It also directs agencies to review their websites for content created since the start of the Trump administration and update content that is “inconsistent with the principles set forth in this memorandum.” Biden said in the signing ceremony the measure would “protect our world-class scientists from political interference and ensure they can think, research, and speak freely and directly to me, the vice president and the American people.”