That decision has strained the relations between the U.S. and Russia. President Barack Obama called off a meeting with President Vladimir Putin at a summit hosted by Russia in September.
Snowden said the U.S. government was "unwilling to prosecute high officials who lied to Congress and the country on camera, but they'll stop at nothing to persecute someone who told them the truth."
In a note accompanying the videos, WikiLeaks said Snowden spoke on Wednesday in Moscow as he accepted the Sam Adams Award, given annually by a group of retired U.S. national security officers and named for a CIA analyst during the Vietnam War who accused the U.S. military of deliberately underestimating the enemy's strength for political purposes.
Four former U.S. government officials who were at the ceremony told The Associated Press on Thursday that Snowden is adjusting to life in Russia and said they saw no evidence that he was under the control of local security services. They refused to say where they met with Snowden or where he is living.