This book addresses what remains one of the 21 century's greatest mysteries with the loss of MH370 on 8 March 2014, the second tragedy accords a unique opportunity to compare the communications responses to both crises. The authors have been able to add to the original manuscript a chapter on learning from the crisis. In addition, the future of Malaysia Airlines was placed in greater jeopardy by the downing of MH17 and so the chapter reviewing the crisis impacts has been updated.