V.G.Khlopin: acsent at the last apex

The article is devoted to the history of the national ptoject headed by V.G.Khlopin. Special attention in the article is paid to creation of large-scale technology for plutonium separation from uranium irradiated in reactor. The article contains official documents, private letters and fragments from recollections, which make it possible to get acknowledged with dramatic details related to creation of atomic weapons in the USSR