The fallout from President Trump’s temporary ban on refugees to the U.S. struck with full force Saturday, blocking some travelers from boarding their planes overseas, compelling others to turn around upon arrival in the U.S., and prompting customs agents at New York’s JFK Airport to detain at least a dozen people, including a former Iraqi translator for the U.S. military in Baghdad. Speaking to hundreds of demonstrators at JFK Airport, Rep. Jerrold Nadler, D-N.Y., called the ban ineffective, discriminatory, “disgusting,” and said it “goes against every ounce of our traditions from George Washington onward.”