Julian Assange in August 2012 (Michael Jaworski/FilmMagic/Getty); Edward Snowden supporters in Hong Kong (Jessica Hromas/Getty)

On Saturday, WikiLeaks founder Julian Assange spoke out against President Obama in a speech released on Twitter, saying the POTUS betrayed Edward Snowden, the man behind the NSA leaks. CNN reports Snowden was recently charged with espionage and theft of government property by U.S. federal prosecutors, according to a criminal complaint unsealed in U.S. District Court in Virginia yesterday. 

As he appealed for a "brave country" to step forward and offer Snowden asylum, Assange also accused U.S. President Barack Obama of betraying a generation of "young, technically minded people" …

Snowden, 30, has admitted in interviews that he was the source behind the leak of classified documents about the NSA's surveillance programs. Those leaks were the basis of reports this month in Britain's Guardian newspaper and The Washington Post.

He is believed to be in hiding in Hong Kong. The United States has asked authorities there to detain the former National Security Agency contract analyst on a provisional arrest warrant, The Washington Post reported, citing unnamed U.S. officials.

Assange himself is currently sidestepping an espionage case in the U.S., among other charges of rape and sexual molestation in Sweden, by living in the Ecuadorian embassy in London for the last year.

Read more at CNN.