An Arab model for a US debate

As Islamic State loses ground in the Middle East, tens of thousands of its fighters are heading elsewhere or being sent back to their countries to plan terror attacks. It may help explain the fear behind President Trump’s travel ban on migrants from Iraq, Syria, and five other Muslim. In fact, Tunisia, which was the region’s only democracy to emerge from the 2011 Arab Spring, is holding a relatively calm and inclusive debate about it – a response that should be a model for the