US TV show host Savannah Guthrie has said in a new video that her family is living an unending nightmare nearly six months after her mother’s disappearance and pleads with her kidnappers: “Tell us where to look for her.” The video, released on Monday, is the latest public plea from the Today presenter about 84-year-old Nancy Guthrie since her disappearance on February 1 from her home just outside Tucson, Arizona. Savannah Guthrie said her family will never stop looking for her. “The world can be...