The death toll from anti-government protests in Iran continues to grow.

The American-based human rights monitor HRANA says 2,500 have been killed in the police crackdown, although other groups say it could be as high as 12,000.

Verifying the toll has been difficult amid a sweeping media and telecommunications blackout — effectively cutting the country off from the outside world.

But some Iranians are using online tools and new technologies to bypass the restrictions.

• Guest: Mehdi Yahyanejad, co-founder of the group NetFreedom Pioneers
• Producer: Eddy Diamond