FirstFT: China warns US it could retaliate over Iran sanctions

China's warning to the US about potential retaliation over new Iran sanctions underscores the escalating geopolitical tensions in the region. This move comes amid other international flashpoints, such as a charged Nvidia employee accused of smuggling chips into China, and Canada's recent announcement of $20 billion in retaliatory tariffs. These developments highlight the complex web of global trade and diplomatic relations, emphasizing the significant stakes involved in international policy decisions. For those following global affairs, these events signal a period of heightened scrutiny and potential conflict.