WASHINGTON - Senate Majority Leader Bill Frist, who took a leading role in the Terry Schiavo case, said Sunday it taught him that Americans do not want the government involved in such end-of-life decisions. Frist, considered a presidential hopeful for 2008, defended his call for further examinations of the brain-damaged Florida woman during the last days of a bitter family feud over her treatment. Schiavo was in a persistent vegetative state. The case became a rallying point for right-to-life advocates, an important segment of the Republican Party. It also drew interest from those supporting the right to refuse life-sustaining medical...