You don't have to understand what she is saying to be moved by this video. You don't see much of anything, but listen to her voice. This is from Tehran, where the reform candidate called for people to shout "Allāhu Akbar" from their rooftops.
A rough translation from HuffingtonPost:
She is saying that they can take our phones, our internet, all our communication away, but we are showing that by saying "allaho akbar" we can find each other. She ends it my saying that tonight they are crying out to god for help.