He was brought before the House Un-American Activities Committee and, on legal advice, invoked the Fifth Amendment and refused to answer each of over 200 questions that were put to him.
Siya ay nagdala bago ang House Tanggalin-American Activities Committee at, sa mga legal na payo, invoked ang ikalima Amendment at tumanggi sa bawat sagot ng higit sa 200 mga katanungan na na-ilagay sa kanya.