Considering that the Space Race of the 1960's was inextricably linked to military missile technology and that astronauts/cosmonauts were military personnel consider this blog entry to be more than borderline germane.
Also consider within context of the most recent Russian military missile failure accompanied by a spew of nuclear radiation.
The "Lost Cosmonaut" as is deemed. Soviet female cosmonaut lost during re-entry? Burned to a crisp evidently. And all concealed from the world. And as is reputed only one a number of Soviet manned space failures.
Back in the days of the old Soviet Union automobiles did not collide, aircraft did not fall out of the sky, ships did not sink, trains did not run off the track. And surely manned space missions did not fail!
AND IF DISASTER OCCURRED HIDDEN FROM THE WHOLE WORLD AND LABELED TOP SECRET!
Here is what is believed to be the actual recording of a Soviet woman cosmonaut perishing during re-entry.
Tapes of Soviet cosmonauts courtesy the Italian Judica-Cordiglia brothers. Operating an amateur radio listening station, monitoring frequencies as used by the Soviet space program.
AUTHENTICITY OF THESE RECORDINGS QUESTIONED.
Given the fact the Soviets only announced a successful launch and recovery of a mission into outer space only after might reasonably allow a person to infer there were failures and deaths of cosmonauts. Truth probably concealed and always will be. I am sure someone knows the truth but they are not saying and never will.