Last year, Bob Woodruff spent 27 days as co-anchor of ABC's World News Tonight. His 28th day — January 29, 2006 — was one he can't remember too well. Woodruff screened To Iraq And Back, a prime-time documentary on the blast and his recovery — and the soldiers who've returned from Iraq with traumatic brain injuries — for a dozen or so media reporters, some teary-eyed, this morning in New York. Woodruff says he remembers seeing his body "floating below" him in the U.S. tank he was traveling in. "I was spitting a lot of blood," Woodruff recalled. "'Am I alive?'"