It’s deja vu all over again, as Yogi Berra used to say. Howzat? We recently marked the 100th anniversary of the passage and implementation of the Immigration Act of 1917. That’s when we slammed the door on immigrants from the “Asiatic Barred Zone,” a sprawling region that included Saudi Arabia, most of China, Afghanistan, Pakistan, India, Malaysia, … More The biggest threat (choose one): Muslim extremists, nuclear attack — or our own guns?