United Nations September 24, 2024 11:24 am WATCH: President Biden's full speech at the United Nations President Joe Biden made his final speech to the United Nations General Assembly on Tuesday and spoke about support for Ukraine and challenges with artificial intelligence. US & World Videos 1:54 Woman attacked by coyote while hiking in Southington 1:07 More than 50 people stranded on roof of Tennessee hospital flooded by Helene 2:17 Vernon police arrest teen suspected in threats to several schools, places of worship 1:02 WATCH: Aerial images show Helene's trail of destruction in Florida 0:42 WATCH: Coast Guard rescues man and dog after boat fails during hurricane