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Cohen echoed Wang's view, saying there's a big incentive for China to develop its own system. "This is what people keep talking about — 'decoupling'. When you start saying you can't use our software and chips, then they start developing their own software and chips," he said.

Compared with electric cars, fuel cell vehicles, which mix hydrogen and oxygen to power electric motors, have a shorter refill time and longer driving ranges. They do not generate pollution since the only by-product is water.

Commenting on challenges brought by the policy change, Lu said the way to win out in the fierce market competition for NEV manufacturers lies in improving the quality of products and offering better technical services.

Compared to Bitcoin or other digital money issued by the private sector that is spawning concerns over financial risks, digital fiat currency, authorized and issued by a country's central bank, has the same legal tender status as the country's banknotes and coins.

Collusion itself is not an actual crime under the US criminal code, so prosecutors would look to see if Trump Jr.'s conduct ran afoul of a specific law, legal experts said.