As US President Donald Trump visits China, Beijing and Washington haggle over tariffs, rare earths and US arms sales to Taiwan, as the war on Iran and Hormuz Strait tensions raise

As US President Donald Trump visits China, Beijing and Washington haggle over tariffs, rare earths and US arms sales to Taiwan, as the war on Iran and Hormuz Strait tensions raise energy risks for both. Al Jazeera’s Um-e-Kulsoom Shariff explains.