Facing emergency, the functions of the media are embodied in the following three aspects: to reach the unity of keynote of the crisis spreading through inspiring the public;

在危机突发期，媒体的作用体现在三方面：在激发公众情绪中实现危机传播的基调统一；

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The speech ended with a call to unity and was generally deemed inspiring, but did it change race relations in America?

BBC: What's the point of presidential speeches?