Half-Life The Divided Life of Bruno Pontecorvo, Physicist or Spy

This book is great resource for all interested in the life and epoch of Bruno Pontecorvo. The mystery of his life trajectory remains, but Frank Close gives many hints to understanding better the context. The book is very rich with references, and those interested in the workings of the secret services from the US, UK and USSR will learn a lot. But this is maybe also one of the weaknesses of the book, for my taste there is a bit too much of this spy question, and not enough about the great physicist that Bruno Pontecorvo was. But to all interested in, and prepared to spend a lot of pleasant reading about, a detailed documentation of the 'Pontecorvo' case I can strongly recommend the new book of Frank Close.