President Joe Biden on Wednesday signed an executive order that will narrowly prohibit certain US investments in sensitive technology in China and require government notification of funding in other tech sectors. The long-awaited order authorizes the US treasury secretary to prohibit or restrict certain US investments in Chinese entities in three sectors: semiconductors and microelectronics, quantum information technologies, and certain artificial intelligence systems. Biden said in a letter to Congress he was declaring a national emergency to deal with the threat of advancement by countries like China “in sensitive technologies and products critical to the military, intelligence, surveillance, or cyber-enabled...