FILE - The thumbs up Like logo is shown on a sign at Facebook headquarters in Menlo Park, Calif. on April 14, 2020. Facebook has failed to catch Islamic State group and al-Shabab extremist content in posts aimed at East Africa as the region remains under threat from violent attacks and Kenya prepares to vote in a closely contested national election, according to a new study released Wednesday, June 15, 2022. (AP Photo/Jeff Chiu, File)