Kwame Holman reports on a new UN report on Iran's nuclear activities. Ray Suarez reports on accelerated deployments of National Guard units to Iraq and speaks with David Cloud of The New York Times, who broke the story Thursday. Judy Woodruff reports on continuing problems at Walter Reed Army Medical Center. The guests this episode are Ray Takeyh, Henry Sokolski, David Cloud, Bob Filner, Christopher Shays. Byline: Jim Lehrer, Kwame Holman, Ray Suarez, Judy Woodruff, Saul Gonzalez