Tens of thousands of people joined a pro-Palestinian rally in the business district of Australia's most populous city, Sydney, on Sunday, organizers said, after a court this week blocked a move to hold the protest at the Sydney Opera House.Around 27 protests took place across Australia on Sunday, including in Melbourne and Sydney, said the organizer, the Palestine Action Group, which estimated a crowd of 30,000 at the Sydney rally. Police did not have a crowd estimate for the protest.The