Gatestone Institute senior fellow Gordon Chang weighs in on Treasury Secretary Janet Yellen's upcoming trip to China and the increase in Chinese nationals at the southern border on'The Ingraham Angle.' China has significantly expanded its legal framework to target those expected to or affiliated with threatening national security, putting pressure on the relationship between foreigners in China and Chinese working with foreign entities across all fields. Adding pressure to the already fragile relations, Chinese citizens are called upon to be vigilant against espionage and national security risks as part of a broader whole-of-society approach. The amendment is one of the latest attempts by Chinese lawmakers to control the flow of information among growing national security concerns. Recently, authorities closed its most extensive academic database, the privately owned China National Knowledge Infrastructure for several non-Chinese institutes, also the country's financial database restricted foreign access.