Prosecutors in the Luigi Mangione case are arguing that his defense team's plan to dig into jurors' private lives is too "intrusive."In a court filing made on Monday, federal prosecutors responded to proposed questions to jurors made by Mangione's defense team, which haven't yet been made public. Deputy U.S. Attorney Sean Buckley wrote that some of the questions are "unnecessarily intrusive." Mangione is accused of assassinating UnitedHealthcare…