The logo of Huawei stands on its office building at the research and development centre in Dongguan in south China's Guangdong province, Tuesday, Dec. 18, 2018. While a top executive of Chinese tech giant Huawei faces possible U.S. charges over trade with Iran, the company's goal to be a leader in next-generation telecoms is colliding with security worries abroad. Australia and New Zealand have barred Huawei as a supplier for fifth-generation networks, joining the U.S. and Taiwan. Last week, Japan's cybersecurity agency said Huawei and other vendors deemed risky will be off-limits for government purchases. (AP Photo/Andy Wong)
