Can you give a synopsis of what he says?
The pro-vax side has, in the past, claimed that no vaccines contain aborted fetal tissue. In the video, Paul Offit admits that several were developed using tissue cultured from 2 European elective abortions. In same video, Plotkin testifies under oath that in one single vaccine study in which he participated, over 75 elective abortion fetuses were chopped up and used. Moreover, he claimed to have participated in several such studies, but did not have an exact count of the total number of aborted children used (presumably some number between 100 and 10000?). Plotkin is responsible for developing several vaccines, and is a pioneer in the field; his thick book on the topic is a standard reference. He’s also an admitted atheist and has no moral problem with using the fetal tissue.