What makes America unsafe? Is it a welcoming attitude towards ordinary law-abiding Muslims and other disparate peoples scattered across the globe? Or is it the enactment of policies that indiscriminately and unfairly harm average people?

If you’re President Trump, it’s undoubtedly the former. Trump has spent the last few days attacking the judge who stayed his Muslim ban, claiming it “put our country in such peril” and that without the ban “we can never have the security and safety to which we are entitled.”

But a recently released letter to President Obama written by alleged September 11 mastermind Khalid Shaikh Mohammad suggests a different conclusion.