President Trump has issued an executive order cracking down on anti-Semitism. But some Jewish Americans fear that the plan could end up deepening prejudice instead of curbing it. Guest: Max Fisher, a Times international reporter and columnist for The Interpreter. For more information on today’s episode, visit nytimes.com/thedaily.  Background reading:The executive order touches on a defining issue of our time: Who belongs, and who decides?Some students across the United States said they were afraid that the order would backfire, worsening anti-Semitism on college campuses.