Note From Elizabeth Vargas on Changes to 'World News Tonight'

Elizabeth Vargas closed tonight's "World News Tonight" broadcast with a note on the changes at the anchor desk. The following is a copy of what she said:

"Before we leave tonight, a note about change. There's been a lot of it on this broadcast. From Peter Jennings' announcement that he had lung cancer, to his death, to the decision to name Bob Woodruff and me as the new anchors.

Bob's injury in Iraq forced us -- yet again -- to change the way we planned to cover the news and now, another new chapter will begin. As of Monday, Charles Gibson will be taking the helm of this broadcast as I focus on anchoring "20/20" and the arrival of my new child.

It's been an honor and a privilege bringing you the news every night. And the only thing that makes this transition any easier is knowing that you will be in very capable hands.

I'll see you again tomorrow. For all of us at ABC News, goodnight"