'ABC World News Tonight' teases and open Sept. 10, 2021

The teases and open for the Sept. 10, 2021 edition of "ABC World News Tonight" with special coverage of the 9/11 20th anniversary. Read more: https://nca.st/E2tAC Subscribe to NewscastStudio on YouTube in two easy clicks: https://nca.st/ncytsub This video may contain content copyrighted by third parties but is used as part of news coverage and commentary and therefore subject to the fair use exception under Title 17, Chapter 1, Section 107 of United States law. NewscastStudio makes no claims to third party content contained in this video and no infringement is intended.