“Well, well, even I handled classified documents more securely.
At least I kept them encrypted,” he wrote on his Twitter account.
Snowden also suggested that Biden took more classified documents than many whistleblowers who were punished for publishing the data.
Prior to this, it was reported about the discovery of secret documents from the period of Biden's work as Vice President of the United States in the premises of a think tank in Washington.
Also, White House Special Counsel Richard Sauber said that Biden's lawyers found new secret documents relating to the period of his vice presidency in the garage of his house in Wilmington.
Later, Biden admitted that he kept secret documents in his "personal library" at home.