This book has been described to me as one of the classics of scientific journalism, and I must agree. It is clearly written, in a nontechnical yet non-fluffy way. Ideas, devices, people come to life on these pages.
Of course, time has passed: this is a 1973 book, and the references to terrorism and the fears of the USA are fatally dated. But it does not really matte, the intelligent reader will be able to make his mental adjustments.
And one does hope that the safeguards of the atomic energy industry have improved vastly during these thirty-five years.