German police disperse G20 protest with water cannon before summit

German police used water cannon to disperse around 500 anti-capitalist protesters overnight in the port city of Hamburg where Chancellor Angela Merkel will host leaders of the G20 leading economies in a two-day summit starting on Friday.Tens of thousands of protesters are expected to march in the city this week against globalization and what they say is corporate greed and a failure to tackle climate change.German authorities believe around 8,000 demonstrators were prepared to use violence, the