WASHINGTON - Author Joe McGinniss says some of the people quoted by name in his controversial book on Sarah Palin have been threatened since its release last week."A couple of them have already gotten some blowback," McGinniss said Thursday in a telephone interview from Toronto, where he was in town promoting "The Rogue: Searching For The Real Sarah Palin.""One guy was even told he'd better watch his back because it's going to be a long winter; he might not see the end of it because he has such a big mouth." After months spent fending off similar threats when he...