Experts disagree where Iran is heading with nuclear technology, but there's no doubt that Iran is keeping up with social media. Iran's Supreme Leader, Ayatollah Ali Khamenei, has joined Instagram, the photo-sharing service.

The vice president says if Iranian leaders are serious and have an agenda for discussion, the U.S. is open to direct negotiations on Iran's nuclear program.

A top State Department official wants to unleash the power of Twitter, Facebook and other services to crowdsource the fight to control the world's nuclear weapons.

New software being developed at the University of Michigan aims to defeat Internet censorship by turning the entire Internet into an anti-censorship device.