Almost exactly six years after the British handed over control of Hong Kong to Communist China, a mass rally of 500,000 people through Hong Kong has forced the Beijing-installed Chief Executive, Tung Chee Hwa, to defer implementation of new laws which would severely restrict political freedoms in Hong Kong.Under the terms of the British hand-over, China promised to maintain political freedom in Hong Kong, under its “one country, two systems” formula.However, these have been eroded by a number of…