Amateur video out of Syria appears to show demonstrators taken into custody by Syrian security forces in Damascus. The video, which could not be independently verified by Reuters, was purportedly shot Friday. The sound of sirens can be heard as police use water cannons to stem the violence. A demonstrator is dragged through the streets and beaten. The Syrian government has vowed to crush the revolt with a quote 'iron fist' after 26 people died in a contested suicide bomb in the capital.