The Days of Remembrance, the nation's annual commemoration of the Holocaust, continue through Sunday.
"We owe it not only to the living," he says of the need to remember the killing of 6 million Jews during the Nazi Holocaust, but to those who died as well.
"If we forget, the dead will be killed a second time," Wiesel says, "and then they are today's victims." Copyright 2011 National Public Radio. To see more, visit http://www.npr.org/.