US report accusing firms of being security threat sparks angry denial
A Romney administration may consider providing more advanced weapons to Taiwan to maintain strong US military capabilities in the Asia-Pacific region.
China is firmly opposed to the US' stance that the Diaoyu Islands fall within the scope of the US-Japan security treaty.
All but 15 of the 435 districts represented in Congress recorded larger numbers of goods sold to China than to other export markets in 2011, according to a leading business group.
Washington's bid to take advantage will damage ties, analysts say