参考答案：对

解析：[听力原文]Johnny Carson insisted that the only message of his show was entertainment. But his credibility with the American public was such that his monologues were carefully monitored by politicians mindful that no politician who became a frequent target of Johnny Carson could long survive in public life.

[分析]： 推理判断题。 根据原文可知，Johnny Carson坚持说他的表演是娱乐性的，但his monologues were carefully monitored by politicians mindful that no politician who became a frequent target of Johnny Carson could long survive in public life由此可见，他的独白被美国政客们严密监控，因为只要某人成为Johnny Carson的靶子，他不久便会退出公众生活。因此题干的说法与原文相符，是正确的。[解题关键] 通过上下文理解句中比喻的含义是解题的关键，如正确理解本题中target的含义。