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WASHINGTON — US President Donald Trump is expected to remove Department of Homeland Security chief Kirstjen Nielsen and is considering replacing chief of staff John Kelly, a source close to the White House said, while Melania Trump issued a statement calling for the dismissal of the deputy security national adviser over her handling of the first lady's trip to Africa.

WUHAN - Authorities in Central China's Hubei province said they had rescued a man who had drifted in the Yangtze River for four hours after accidentally falling into the water.

Wang Jinfu, deputy chief designer of DHHI, said the company was the first in the world to master such a maneuver.

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Wan noted that the intelligent emergency brakes in the level 2 technologies will significantly reduce the possibility of accidents, dramatically reducing fatalities, and drastically reducing property and financial loss.

Walmart also asked customers at Walmart and Sam's Club to no longer openly carry firearms, a move followed by other retailers, including grocery chains Kroger and Wegmans and drugstore chains CVS and Walgreens.

Walmart To Go, the home delivery service operated by Walmart, first arrived in Denver this past October. Now, the store is?testing a new service that lets people order online and then pickup purchased items at a designated area outside one of the 11 Denver-area Walmarts.

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WASHINGTON - White House trade adviser Peter Navarro said on Sunday that "several sticking points" remain in the trade talks between the United States and Canada to overhaul the North American Free Trade Agreement (NAFTA).

WUHAN - A new direct flight will be launched between Wuhan City in Central China's Hubei province and Mauritius, the provincial government said on Friday.

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Wang Gaofei, CEO of Weibo, said during Weibo's earnings conference call that the platform, with the number of its daily active users (DAUs) and monthly active users (MAUs) growing steadily, has strong growth momentum in its business.

Walmart's action comes days after President Donald Trump condemned video games and said that they are linked to violent behavior. He has not cited which studies he believes back up his assertion There is no known link between violent video games and violent acts.