The main purpose of the Guarding American Technology from Exploitation Act of 2026, also known as the GATE Act of 2026, is to enhance national security by restricting access to U.S. National Laboratories for certain foreign nationals. The objective is to prevent potential exploitation of sensitive technologies and information by individuals from specific countries that are considered security risks. The key provisions of this legislation include a prohibition on admitting foreign nationals from five designated countries: China, Russia, Iran, North Korea, and Cuba.