BAGHDAD, Feb 14 (Reuters) - CNN broadcast on Wednesday what it said was a video showing a U.S.-Iraqi soldier who was kidnapped in Baghdad nearly five months ago. The undated video, posted on a militant Web site, showed Ahmed al-Taie, a 41-year-old linguist, reading a statement. "Proof of life was a condition for continuing dialogue" with the kidnappers, his uncle Entifadh al-Taie told CNN from Washington. "There is no date on this. We don't know if he is in good shape now."