NEW YORK (AP) — An Afghan immigrant pleaded not guilty Tuesday to planning a New York City terrorist attack with bombs made from beauty-supply chemicals — an alleged plot authorities say was helped by at least three accomplices whose whereabouts and level of involvement haven’t been revealed. “The conspiracy here is international in scope,” Assistant U.S. Attorney Jeffrey Knox told a federal judge in Brooklyn. Najibullah Zazi never spoke and showed no emotion as his lawyer entered the plea.