近些年,我国突发公众事件的发生率明显增加,金融危机、自然灾害、食品安全、环境破坏等公众事件频发。突发公众事件不同于其他一般的事件,它具有突发性、特殊性、不确定性以及扩散性等特点,不能事先采取防护措施,这类事件一旦发生就极可能严重影响到我国的社会安定和民族团结,部分虚假新闻和不实言论会闹得人心惶惶,所以不但要求国家有相应的应对措施,还需要有诚实可信、影响力大的公共渠道来引导社会舆论、安抚人 In recent years, the incidence of public emergencies in our country has increased markedly. Public events such as financial crisis, natural disasters, food safety and environmental destruction have been frequent. Public emergency incidents are different from other common incidents in that they are characterized by suddenness, particularity, uncertainty and proliferation. Preventive measures can not be taken and events of such kind are most likely to seriously affect the social stability of our country. And national unity, some false news and untrue speech will make people panic, so not only require the country to have the appropriate response measures, but also need to have honest, credible and influential public channels to guide public opinion, pacify people