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A robot equipped with artificial intelligence is seen at the AI Xperience Center at the Vrije Universiteit Brussel in Brussels Feb. 19, 2020. The use of artificial intelligence in science and medicine must be guided by ethical standards that place humanity and the pursuit of the common good first, Pope Francis said Feb. 28 in a message to participants in the general assembly of the Pontifical Academy for Life at the Vatican. (CNS/Reuters/Yves Herman)