Nightly News | October 10, 2011
BRIAN WILLIAMS, anchor: Speaking of London , Big Ben is leaning. The top of the spire is about a foot and a half out of plumb. And while it was never really perfectly straight, thanks to some inexact Victorians , it has gotten worse to the point where some tourists who take pictures of it notice it's not perfectly straight. Researchers say the ground is shifting beneath it and it may soon be visible to the naked eye.