All gene therapies have flaws. "Gene therapy’s comeback: how scientists are trying to make it safer": https://www.nature.com/articles/d41586-022-01518-0?WT.ec_id=NATURE-20220616&utm_source=nature_etoc&utm_medium=email&utm_campaign=20220616&sap-outbound-id=EAF87A2C93D0538C4F69160A824335FA805B83BF