A leading Holocaust historian has refused to let the US public broadcaster "C-Span" tape one of her talks because the network plans to air a speech by the Holocaust denier David Irving. Deborah Lipstadt told the network that it could not tape her talk at Harvard “I am not going to be the enabler,” Lipstadt, a Jewish studies professor at Emory University in Atlanta, told the "Jewish Telegraphic Agency". In 2000, Irving lost his lawsuit against Lipstadt and her publisher, Penguin Books. Lipstadt had accused him of being a Holocaust denier. Connie Doebele, executive producer of "Book TV", expressed disappointment at Lipstadt’s decision, and defended C-Span’s decision. “We always say to ourselves, ‘Where is another view of this? Is there another voice that needs to be heard?’”