Final answer:
The evidence from the War of the Worlds radio broadcast supporting the theme of human vanity causing problems is showcased through a conversation between Phillips and Pierson, where human curiosity and a lack of authoritative information lead to misunderstandings and panic.
Step-by-step explanation:
The evidence from the radio broadcast War of the Worlds that supports the theme that human vanity can cause problems is the conversation between Phillips and Pierson. In this dialogue, Phillips asks Pierson about the meaning of the unidentified object, showcasing human curiosity and desire for knowledge. However, Pierson's response, stating that he can provide no authoritative information, highlights the consequences of human vanity when individuals assert knowledge without proper understanding or evidence. This exchange illustrates how human vanity can lead to misunderstandings and panic.