(Knight-Rider) Lincoln, Neb. - Sally Wright once walked the halls of her high school with a cheerful smile on her face. Now she walks the halls with a scarf wrapped around her mouth. Sally's lower jaw was removed earlier this year in an effort to stop the spread of the cancer which is eating away at her mouth. At 16, Sally is a tragic victim of smokeless tobacco-related mouth cancer, a tragedy worsened by the fact that she has never taken as much as a pinch of snuff in her life. But the same doesn't apply to her boyfriend "Carl."...