In science news around the world, a tiny geolocator maps the lengthy migration of a rare songbird, an epidemics database wins the first Open Science Prize, a U.K. ethics group calls for caution in deploying genetic tests of fetal DNA in the mother's blood, cleanup efforts at the stricken Fukushima Daiichi Nuclear Power Plant face technological hurdles, and China pledges to reduce pollution and increase food and drug safety. Also, former Texas Governor Rick Perry is confirmed as head of the Department of Energy, and former Montana congressman Ryan Zinke is confirmed to head the Department of the Interior. And U.S. President Donald Trump unveils a new iteration of his immigration ban.