A U.S. congressman said on Thursday that he would get to the bottom of the mystery behind the deaths or disappearances of 13 scientists in the previous few months. This came as President Donald Trump offered an update on the federal government’s probe. “The count is up to 13. Thirteen American scientists tied to nuclear and space research, missing or dead,” Rep. Eric Burlison, R-Mo., said on X. “Every adversary on the planet celebrates each one …