This text deals with risk and its management. Since the last edition of the text appeared, several tragedies have occurred that clearly demonstrate the deadly presence of risk in our society. A suicide bomber entered a market near Baghdad, detonated a bomb, and killed 11 people. Malaysia Flight 360 mysteriously disappeared with 239 passengers aboard, causing an enormous amount of pain and suffering to the surviving families. A deadly earthquake struck Nepal, a low-income country in Asia, which killed more than 8,600 people and destroyed or damaged tens of thousands of houses. Meanwhile, in the United States, a gunman killed nine members of a Bible study group in an historical African American church in Charleston, South Carolina, and a student enrolled at Umpqua Community College in Oregon killed nine people and himself in a tragic and senseless shooting.

本文论述了风险及其管理。自上一版文本问世以来，已经发生了几起悲剧，清楚地表明了我们社会中存在着致命的风险。一名自杀式炸弹袭击者进入巴格达附近的一个市场，引爆炸弹，炸死11人。马来西亚360航班神秘失踪，机上有239名乘客，给幸存的家庭带来了巨大的痛苦和痛苦。一场致命的地震袭击了亚洲低收入国家尼泊尔，造成8600多人死亡，数以万计的房屋被毁或损毁。与此同时，在美国，一名持枪歹徒在南卡罗来纳州查尔斯顿一座历史悠久的非裔美国人教堂杀害了一个圣经学习小组的9名成员，俄勒冈州乌姆帕社区学院（Umpqua Community College）的一名学生在一场悲剧性的、毫无意义的枪击中打死了9人和他本人。