The recent findings of DNA fragments in the Pfizer and Moderna Covid-19 vaccines has led many to question why the FDA, which is responsible for monitoring the quality and safety of the vaccines, has failed to sound the alarm.For years, the FDA has known about the risk posed by residual DNA in vaccines. Its own guidance to industry states:“Residual DNA might be a risk to your final product because of oncogenic and/or infectivity potential. There are several potential mechanisms by which residual DNA could be oncogenic, including the integration and expression of encoded oncogenes or insertional mutagenesis following DNA integration.”Put...