The passage is from the transcript of the radio adaptation of The War of the Worlds by H. G. Wells. Instead of including expert interviews, H. G. Wells uses a narrator to tell about an alien invasion that occurred a few years earlier. What is the biggest effect of including expert interviews in the adaptation?

By including expert interviews in the adaptation, an effect of realism and real time is created. If people had heard a narrator, they wouldn't have believed that an invasion was taking place in their city. Nevertheless, at hearing expert interviews, everybody thought the invasion was real and they rushed to the streets. The effect is creating a panic atmosphere to experiment what people would do in case of a real invasion.