Thousands of protesters on Thursday took part in an annual demonstration in the capital Athens to commemorate 1973 crackdown on a student uprising by the military dictatorship that ruled Greece from 1967 to 1974. Some 7,000 police - about one for every demonstrator - were monitoring the protest, which comes at the height of a vicious financial crisis that has seen many violent demonstrations. RT on Twitter http://twitter.com/RT_com RT on Facebook http://www.facebook.com/RTnews