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American stocks regained some of the ground surrendered on Monday that was inspired by uncertainty over trade policy. Investors, however, remain concerned that trade tensions between the US and China and the European Union could weigh down the world economy.

Amazon’s current AWS region map.

American Express is still waiting for regulatory approval for its Chinese joint venture to start the clearing and settlement business in China.

Amazon’s research into self-driving cars is ongoing. The company’s robotics team is looking for “passionate and talented research scientists to develop future mobility and transportation systems,” according to job?openings posted to Amazon’s website.

Amazon’s push into the smart home is evident not just in its investments in other companies but its own product roadmap. Last month Amazon unveiled a flurry of new devices, many of them focused on the home, such as a microwave, wall clock, subwoofer and amplifier and more.