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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.

BEIJING, Dec. 21 (Xinhua) -- China proposed on Monday to advance its economic and trade relations with France to a new level by taking the opportunities that may emerge when tackling global challenges including the financial crisis and climate change.     Premier Wen Jiabao made the remarks when meeting with visiting French Prime Minister Francois Fillon, who witnessed an unveiling ceremony of the biggest new energy joint venture between the two countries Monday morning. Chinese Premier Wen Jiabao (L) holds a welcoming ceremony for French Prime Minister Francois Fillon (R) at the Great Hall of the People in Beijing, capital of China, Dec. 21, 2009. "We should take the opportunities of tackling the international financial crisis, climate change, energy security and other global challenges, and change our ways of thinking and deepen cooperation to advance bilateral economic and trade relations to a new level," Wen told Fillon     "We should follow the opening and win-win principles, oppose trade protectionism, and take effective measures to help bilateral trade resume growth at an early date," Wen proposed.     Statistics showed that the China-France trade volume has been falling since the third quarter of 2008, with China's exports to France declining significantly. Chinese Premier Wen Jiabao (R) shakes hands with French Prime Minister Francois Fillon during a welcoming ceremony Wen holds for Fillon at the Great Hall of the People in Beijing, capital of China, Dec. 21, 2009According to China's customs data for the first three quarters of this year, the two countries' trade volume was about 24.6 billion U.S. dollars, down 15.6 percent from the same period last year. It was the first year-on-year decline since 1996.

BEIJING, Nov. 17 (Xinhua) -- Chinese President Hu Jintao hosted a red-carpet welcome ceremony for visiting U.S. President Barack Obama on Tuesday morning at the Great Hall of the People.     This is Obama' s first state visit to China since he assumed presidency in January.  Chinese President Hu Jintao holds a welcome ceremony for visiting U.S. President Barack Obama at the Great Hall of the People in Beijing on Nov. 17, 2009.Chinese President Hu Jintao holds a welcome ceremony for visiting U.S. President Barack Obama at the Great Hall of the People in Beijing on Nov. 17, 2009

BEIJING, Nov. 16 (Xinhua) -- U.S. Secretary of Commerce Gary Locke said here Monday clean energy technology is one of the most beneficial areas for U.S.-China cooperation and also the only way for the two countries to keep sustained economic growth and combat global climate change.     Locke, who accompanied U.S. President Barack Obama's visit to China, made the remarks at the Sino-U.S. clean energy round table conference held here Monday.     It has been Locke's third trip to China since becoming Commerce Secretary in March.     "The United States and China have the power and indeed an obligation to alter history for the benefit of all people on the planet," he said.     As the world's most productive and innovative economies, the U.S. and China are uniquely positioned to create the solar, wind, biofuel and renewable technologies that the world wants and needs, Locke said.     "We can do it by making clean energy the prime engine of the economic growth in the 21st century," he said.     Locke said he plans to lead an energy and trade mission to China next March, which would include U.S. firms from new energy technology sectors and make stops in Beijing, Shanghai and other cities.     U.S. Secretary of Energy Steven Chu also attended the conference, who expressed optimism about U.S.-China cooperation in the deployment and development of clean energy technology.     The conference was co-hosted by China's State Energy Bureau, U.S. Department of Commerce and Department of Energy, in a bid to advance mutual pragmatic cooperation in clean energy and promote the development of clean energy technology and industry.