Day of 'Global Revolution' comes to London as thousands of demonstrators take over the City
- Occupy London follows occupation movements from across the world
- Police ask Julian Assange 'to remove mask' he was wearing
- Protesters had wanted to 'take' Paternoster Square - but it has been closed
- Tents now being put up in the Square Mile
- Protests contained within City area and currently not spreading
- Two arrests made for 'assaults on police officers'