A media shop affiliated with a radical preacher in Dearborn, Mich., recently published a 39-minute video celebrating Charlie Kirk's assassination as a "praiseworthy action" that Muslims across the United States should celebrate and repeat. The call to violence has raised red flags with Trump administration officials as they seek to deport foreign terrorist sympathizers and combat radicalism across the nation. "The Fate of Charlie Kirk: The Insulter of the Messenger [Prophet Muhammad] and His Ruling According to Islam" was published on Oct. 10 by the English-language media outlet Project Guiding Light, a radical content mill affiliated with "pro-Islamic State" preacher...