Is G20 still able to manage economic disagreements?

① G20 members put forward different views on multiple trade issues set by the US presidency. Is G20 still able to manage economic disagreements? (00:49)

② US President Donald Trump names National Intelligence Chief Jay Clayton as the new AI czar. What does this tell us about how the US views AI? (14:29)

③ China's six networks strategy：What does China's next-generation telecom network mean for the future of connectivity? (25:30)