Iran Unblocks Twitter and Facebook

For the first time since the "green revolution" that followed the 2009 elections in Iran, citizens of the country can access Twitter and Facebook.

The social media sites, blocked for four years, were available in at least some parts of the country Monday, according to multiple local reports, tweets and updates. No official announcement was made, leading some observers to speculate that the access could be a technical glitch. (Normally you'd see the government-imposed screenshot above when trying to access Facebook.com in Iran.)