<p>An economist casts a skeptical eye on the federal government's new sovereign wealth fund — and critics who are calling it a "debt fund" may have a point.</p><p><br></p><p>The King has made the first official royal visit to the U.S. in 20 years and our guest tells us the monarch has his work cut out for him as a guest of the unpredictable American president.&nbsp;</p><p><br></p><p>A Washington Post reporter who was at the White House Correspondents' Dinner when a gunman entered the building says she's been processing what happened by digging into how it happened.</p><p><br></p><p>Classical music fans around the world are heartbroken at the death of American conductor Michael Tilson Thomas. A fellow at the training orchestra he founded describes his profound impact.&nbsp;</p><p><br></p><p>Researchers witness a peaceful transfer of power from one naked mole rat queen to another, upending the assumption that such successions are always violent affairs.&nbsp;</p><p><br></p><p>A group...