Marcus Moore reports from Beirut on the second straight day of coordinated explosions in Lebanon, this time with walkie-talkie devices exploding across the country that killed at least 20 people; Rebecca Jarvis has details on the Federal Reserve cutting interest rates by half a percent, marking the first decrease since 2020 and the largest cut in 16 years; Aaron Katersky has the latest after a second judge denied Sean "Diddy" Combs' request for bail; and more on tonight's broadcast of World News Tonight with David Muir.