In an appearance on NBC's Today Show Friday morning, Lon Snowden, the father of NSA leaker Edward Snowden, said that while he has had no direct contact with his son --- who has been in the transit zone of Moscow's Sheremetyevo Airport since June 23 -- he has contacted him through intermediaries.

While he did not share any details of the intermediaries he is using, Snowden told NBC's Matt Lauer that he is "thankful for anybody at this point that is providing him assistance to keep him safe and secure ... if Wikileaks is doing that, I'm thankful for that."

Snowden appeared with his lawyer, Bruce Fein, and sometimes used vague language when discussing the arrangements. He did not specifically confirm that Wikileaks was helping.

Snowden vehemently defended his son's actions, and said he was "an angry American citizen," and that the American people  "don't know the full truth, but the full truth is coming." Snowden also explained that Edward is sharing the truth and doing what is right.

"He did what he knew was right. He shared the truth with the American people. What we choose to do with it is up to us as a people," he said.

Snowden has done several interviews with news media defending his son and  talking about the case.

Also on Friday, Snowden's lawyer Fein released a letter he sent to President Obama urging him to order the attorney general to dismiss the criminal complaint against Edward Snowden and to support legislation to rein in the NSA surveillance program.

"We also find reprehensible your administration’s Espionage Act prosecution of Edward for disclosures indistinguishable from those which routinely find their way into the public domain via your high level appointees for partisan political advantage," Fein wrote, referring to drone protocols leaked to the New York Times..

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Watch the full interview here.