Washington DC, Oct. 24 -- The United States Department of the Treasury has proposed expanding restrictions on American investments in Chinese companies operating in artificial intelligence (AI), biotechnology and other advanced technology sectors, citing national security concerns. The proposed measures would also extend the existing investment-control programme to Cuba, Iran, North Korea and Russia, according to a report by The Epoch Times.

The proposal, announced on October 22, seeks to prevent American capital, business expertise and commercial connections from supporting the development of technologies that could strengthen the military, intelligence and surveillance capabilities of countries considered foreign adversaries by Washing...