WASHINGTON - Borrowing a theme from the presidential contest, Vice President Dick Cheney said Tuesday that the possibility of a 3 a.m. emergency call to the White House is all the more reason for the next commander in chief to follow through on President Bush's plans for a national missile defense. "It's plain to see that the world around us gives ample reason to continue working on missile defense," Cheney told the conservative Heritage Foundation at a dinner recognizing the 25th anniversary of President Reagan's Strategic Defense Initiative, a proposed network of rockets capable of shooting down incoming intercontinental ballistic...