Final Calls From 9/11 Victims Are Still Heart-Wrenching

After the planes hit the twin towers on September 11, 2001, it took a little less than two hours for the skyscrapers to collapse. During those agonizing minutes, people trapped high up in their offices knew something was seriously wrong. Many made their last calls home. Now, a quarter of a century later, recordings of those victims' goodbyes to their loved ones remain heart-wrenching.