U.S. firms concerned as tensions simmer in Hong Kong over looming legislation

HONG KONG (Reuters) - A survey of U.S. businesses on Wednesday revealed deep fears for the future of their operations in Hong Kong if China imposes national security legislation that critics say could curb the financial centre's freedoms and fuel ongoing protests.Contributing to simmering anti-government tensions, Hong Kong lawmakers are set to resume a debate over a controversial bill that would criminalise disrespect of China's national anthem, following scuffles in the legislature in recent..