The US appears to be intensifying its war efforts with an economic squeeze to force Iran to cave in before further talks, but Chinese observers say the strategy could backfire on the US economy. The US continued to exert pressure on Iran on Friday even as Iranian Foreign Minister Abbas Araghchi announced that passage for all commercial vessels through the Strait of Hormuz was completely open for the remainder of a two-week ceasefire due to expire on April 22. The passage of the vessels would...