London (CNN) -- WikiLeaks founder Julian Assange urged the world Saturday to "stand with" Edward Snowden, the man who admitted leaking top-secret details about U.S. surveillance programs, according to the text of a speech posted on Twitter.
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."
Assange was scheduled to speak from the balcony of the Ecuadorian Embassy in London on Saturday, but the appearance was postponed at short notice "due to a security situation," WikiLeaks said on Twitter.
