Washington/Shanghai | A modest Washington-Beijing trade breakthrough won't defuse an intensifying cold war over technology that will hurt investors, says seasoned China-watcher Kevin Rudd after President Donald Trump ordered the US government to step up AI investment .

With both sides resuming talks in Beijing this week, financial markets are still wondering whether the US and China can resolve major differences ahead of the March 1 deadline, when US tariffs on Chinese imports are scheduled to surge.