• A US government contractor was arrested for allegedly leaking national defense information.
• The contractor held a Top Secret security clearance with Sensitive Compartmented Information access.
• The leaked information was allegedly posted on an online publication.
• The contractor faces charges under the Espionage Act.

This arrest may indicate a growing concern about national security leaks within the US government. The case suggests that the Department of Justice is taking a strong stance against individuals who compromise classified information, which could have significant implications for government contractors and national security.