A technician works in a lab at GeseDNA Technology in Beijing. To counter China, the U.S. plans to impose new export restrictions on “emerging and foundational technology” that researchers say could affect the way they share genetic materials with international labs.

A technician works in a lab at GeseDNA Technology in Beijing. To counter China, the U.S. plans to impose new export restrictions on “emerging and foundational technology” that researchers say could affect the way they share genetic materials with international labs.