Yes, because WikiLeaks is very diligent in scrubbing sensitive private information from leaks.
No.
> WikiLeaks founder Julian Assange phoned the White House to warn lives would be put at risk by the publication of cables online, a court has heard.
> On 25 August, 2011, German news outlet Der Freitag revealed that it was possible to access the unredacted database of cables by using a mirror site and a 58-key password that had been published in a book by The Guardian earlier in the year.
https://www.independent.co.uk/news/world/americas/wikileaks-...
No. Wikileaks did indeed accidentally give out the decryption key to the encrypted trove they published from the Manning leaks. There is probably still a torrent available of the full, unredacted scrape of Secret data from the SIPR network.