September 11, 2021 7:49 am US Marks 20 Years Since 9/11 Terror Attacks The U.S. marked 20 years since the terror attacks of 9/11 at ceremonies across the country. US & World Videos 2:17 NOAA predicts most hurricanes ever in first Atlantic hurricane season outlook 1:35 Experts predict ‘extraordinary' Atlantic hurricane season 4:39 Justice Department sues Live Nation and Ticketmaster for ‘unlawful, anticompetitive conduct' 4:45 Seeking a sickle cell cure: 12-year-old in DC is 1st patient in US to get new gene therapy 1:16 Own an iPhone? You could be eligible for a payout as part of a $35 million settlement