Contributor(s): Gavin Hewitt | Gavin Hewitt will discuss the story of a flawed dream, a noble vision that turned dangerous and which has led Europe into its gravest crisis for which it was totally unprepared. Gavin Hewitt has been the BBC’s Europe editor since 2009. He is an award-winning journalist and has covered stories all over the world. His new book is The Lost Continent: The BBC's Europe Editor on Europe's Darkest Hour Since World War Two.