Long before the whole world knew Sarah Palin as "Momma Grizzly," the handful of girls on her high school basketball team called their starting point guard Sarah "Barracuda" for the tenacious defense she played. Hers was the kind of determination that fit in well on a scrappy team from a small town where people were proud to call themselves Valley Trash and happy to take on the big-city schools to prove which team was really the best. As beautiful...