Flags of China and U.S. are displayed on a printed circuit board with semiconductor chips, in this illustration picture taken February 17, 2023. REUTERS/Florence Lo/Illustration/File Photo Aug 11 (Reuters) - While the market mostly shrugged off President Joe Biden's move to prohibit some U.S. technology investments in China, U.S. investors said they were worried Beijing would retaliate or pull back from buying American technology. Aiming to protect national security and prevent U.S. capital and expertise from aiding China's military modernization, Biden this week issued an executive order barring some new U.S. investments in China in sensitive technologies including computer chips,...