G20 foreign ministers open a two-day meeting in Brazil, with the outlook bleak for progress on an agenda of conflicts and crises, from the Gaza and Ukraine wars to growing polarisation. US Secretary of State Antony Blinken and Russian Foreign Minister Sergei Lavrov are both expected in Rio de Janeiro for the first high-level G20 meeting of the year. Brazil, which took over the rotating G20 presidency from India in December, has voiced hopes for what President Luiz Inacio Lula da Silva calls "the forum with the greatest capacity to positively influence the international agenda." However, Mr Lula's bid to...