Great amount of comments it's difficult to keep track of them all.
From my perspective and to give some context over the last few posts.
The tent
As hunter and Teddy have said , it wasn't being stored for any importance. That goes for all the hikers equipment, it was given back to the families and UPI. The food from the labaz was given to the searchers to eat . Nothing was kept for any secret reason and nothing was stopped from being returned to the rightful owners. The tent was a ripped up pile of old canvas , if it was anything more it would have been written in the case files .
The Kremlin
They got mentioned because the family wrote to them . It is not the other way round. There is no mention of Khrushchev being interested.
The CPSU, KGB , secrecy and reports.
They were involved in many reports and investigations of all sorts of accidents and incidents in the Soviet Union. The list is huge and covers many years. The majority of these accidents seem to be filed away and to some level or other the documents were kept "secret" ,if that is even the correct word. These accidents involved everything from , nuclear leaks , floods, numerous railway crashes , fires in factories , schools , cinemas, , explosions, explosions , buses , gases, car, airplanes, missile silos , hikers ( at least 4 similar to the dyatliv pass) , young hikers , mass drownings , alcohol abuse in many instances of the above. Prisoners, jail's , a day when the the sun disappeared. You name it and it's happened, in many cases the death toll has been in the hundreds.
Unknown compelling force
This phrase has been talked about too many times. In the reports to the above accidents , when they don't have the answer to why something happened, for example how a fire started or why a plane component failed , they write" unknown ". But here's the twist , when they do know what happened, they write that as well . This includes cigarettes in a missile silo , drinking whilst operating equipment,incompetence to protect schools or acts of terrorism , two pilots having a bet that a plane could be landed on only reading the instruments and not looking out the window. Whoever messes up gets consequences.
You name it , it's documented , the point being , having read a few of them now , if there was a secret, for example ;escaped prisoners , radiation, failed military test , crashed planes or rockets etc. They will have written it in the case files and not hid any secret for the long-term.
So , unknown compelling force means what it says and the interpretation might sound better or be more similar to "unknown overwhelming circumstances" . It is not a lie to write unknown, they might just be telling the truth ?