This news from Washington: The National Capital Planning Commission today unanimously approved a site among presidential memorials for a monument to slain civil rights leader Martin Luther King Jr. The site is the northwest side of the Tidal Basin, home to many of the blossoming cherry trees that draw tourists every spring. The memorial, approved in a 10-0 vote, would sit on a line between the Jefferson and Lincoln Memorials and close to the more recent one honoring Franklin Delano Roosevelt.