ANCHORAGE - President Joe Biden urged Americans on Monday not to succumb to the "poisonous politics of difference and division" as he sought to revive the spirit of national unity after the deadly Sept. 11, 2001, attacks 22 years ago. "It shouldn't take a national tragedy to remind us of the power of national unity, but that's how we truly honor those we lost on 9/11," Biden told about 1,000 US military personnel at Joint Base Elmendorf-Richardson in Alaska. Biden, his wife Jill, vice president Kamala Harris, her...