Snowden to talk NSA today

Former National Security Agency contractor Edward Snowden will make a rare online appearance Thursday, answering questions during a live chat.

Snowden is expected to respond to President Obama's plans for surveillance reforms, outlined in a speech last week that drew both applause and criticism from reform advocates, according to the site hosting the chat,

Snowden's last live chat was in June, after the first reports surfaced, detailing sweeping U.S. surveillance programs based on documents he provided to journalists.

During his speech last week, Obama criticized Snowden for "the sensational way in which these disclosures have come out," saying Snowden's revelations have "often shed more heat than light, while revealing methods to our adversaries that could impact our operations in ways that we might not fully understand for years to come."

Thursday's online live chat, at 3 p.m. EST. Viewers are encouraged to submit questions via Twitter using the hashtag #AskSnowden, and answers will be posted on the Free Snowden site, supported by The Courage Foundation.