If I had to describe Elizabeth Smart with a single adjective, that word would be "sane." If allowed a second, I'd add "courageous."Most people recognize Smart as the 14-year-old Utah girl who was kidnapped from her bedroom by a self-proclaimed Mormon "prophet" and his equally deranged wife and used as a sex slave for nine months before police apprehended the oddly dressed trio walking down a Salt Lake City street -- en route to a mountain hideout where Smart had been kept tethered to a cable and raped on a daily basis.What they may not understand amid the fog of gossip, misinformation, and fixed ideas that attach to high-profile sex crimes are the crucially important things she's saying about rape, sexual violence and recovery. Moved by Margaret Talbot's excellent profile in the New Yorker, I decided to read Smart's book "My Story."Now 26, Smart heads her own foundation for the prevention of child sex abuse and gives about 80 speeches a year.