An astonishing story in the news recently revealed that an American charedi family living in Israel for many years were actually secret Christian missionaries. Subsequent investigations revealed further "sleeper cells." Paul Shaviv writes the following bizarre account of another such imposter who was prominent in the 1980s. It is disturbing to see how many people were willing to accept the outrageous lies of this imposter without any verification, because it played into a narrative that appealed to them.