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SHANGHAI, Nov. 16 (Xinhua) -- U.S. President Barack Obama said here Monday that the biggest threat to U.S. security is the terrorist groups like al-Qaida.     "I do continue to believe the greatest threat to United States security are the terrorist networks like al-Qaida," Obama said during a dialogue with Chinese students in Shanghai.     He said U.S. troops moved into Afghanistan because al-Qaida wasbeing hosted by the Taliban in Afghanistan but the terror group has now moved over the border of Afghanistan and has networks with other extremist groups throughout the region.     The United States now has 68,000 troops fighting in Afghanistan. Obama is going to decide on whether to grant a request by the top U.S. commander in Afghanistan, Stanley McChrystal, to send 40,000 more troops.     "I do believe it is important for us to stabilize Afghanistan, so that the people of Afghanistan can protect themselves, and they can also be a partner in reducing the power of those extremist networks," he said.     The U.S. president admitted that defeating al-Qaida is a difficult task and is not just a military exercise.     Obama flew into Shanghai from Singapore on Sunday night to kickoff his four-day visit to China, his first trip to the Asian country since taking office in January.     Later Monday, he will fly to Beijing, where he will hold talks with Chinese President Hu Jintao and meet with other Chinese leaders.

WASHINGTON, Dec. 29 (Xinhua) --The U.S. Commerce Department said on Tuesday that it has set preliminary antidumping duties (AD)on imports of steel grating from China, a move that might escalate trade disputes between the two countries.     The department said it "preliminarily determined that Chinese producers/exporters have sold steel grating in the United States at 14.36 to 145.18 percent less than normal value."     As a result of this preliminary determination, Commerce will instruct U.S. Customs and Border Protection to collect a cash deposit or bond based on these preliminary rates.     The product covered by this investigation is a downstream steel product typically comprised of bearing and cross bars used for walkways, platforms and flooring.     From 2006 to 2008, imports of steel grating from China increased 538.44 percent by volume and were valued at an estimated90.7 million dollars in 2008, according to the U.S. Commerce Department.     Commerce said that it is currently scheduled to make its final determination in April 2010.     If Commerce makes an affirmative final determination, and the U.S. International Trade Commission makes an affirmative final determination that imports of steel grating from China materially injures, or threaten material injury to, the domestic industry, Commerce will issue an antidumping duty order.     The new case followed U.S. President Barack Obama's recent decision to impose punitive tariffs on all car and light truck tires from China for three years, a move quickly denounced by China as a "serious act of trade protectionism."     The protectionist moves by the Obama administration will ultimately hurt the U.S.-China trade relations, which are becoming more and more important due to the global financial crisis, economists warned.

BEIJING, Oct. 22 (Xinhua) -- Qingdao Haier Co., Ltd., a leading Chinese household electric appliance producer, announced Thursday evening that its net profit in the third quarter rose 48.88 percent year on year to 300.7 million yuan (44.03 million U.S. dollars).     Its net profit in the first three quarters increased 28.7 percent from a year earlier to 966.4 million yuan, the firm said in a statement to the Shanghai Stock Exchange.     The eastern Shandong Province-based company attributed the net profit hike to reduced inventory and improved assets quality.     Equities of the Shanghai-listed firm added 1.28 percent to 18.17 yuan per share Thursday.

SHANGHAI, Nov. 16 (Xinhua) -- Visiting United States President Barack Obama said on Monday he would discuss economic recovery, climate change and stopping the spread of nuclear weapons in his talks with Chinese President Hu Jintao.     He made the remarks at the Shanghai Science and Technology Museum during his first trip to China since taking office in January. U.S. President Barack Obama delivers a speech at a dialogue with Chinese youth at the Shanghai Science and Technology Museum during his four-day state visit to China, Nov. 16, 2009.    Other key issues he would talk about with Hu included the development of clean energy and the promotion of peace and security in Asia, he said during a dialogue with Chinese youths.

BEIJING, Dec. 7 (Xinhua) -- China's auto sales and output both exceeded 12 million units in the first 11 months, the China Association of Automobile Manufacturers (CAAM) announced Monday.     The CAAM forecast sales and output for the whole year would both exceed 13 million units.     In November alone, sales reached more than 1.35 million units, according to preliminary statistics. Detailed figures are expected to be released on Tuesday.     The country's largest auto maker, Shanghai Automotive Industry Corporation, sold about 2.44 million auto units in the first 11 months, up 54 percent year on year, while Sino-U.S. joint venture company Shanghai GM sold 627,495 units, up 50.5 percent.