Access to Social Networking Sites from NIPRNET

IAW Directive-Type Memorandum 09-026 (Feb 25, 2010) it is DoD policy that:

The NIPRNET shall be configured to provide access to Internet-based capabilities across all DoD Components.

Commanders at all levels and Heads of DoD Components shall continue to defend against malicious activity affecting DoD networks (e.g., distributed denial of service attack, intrusions) and take immediate and commensurate actions, as required, to safeguard missions (e.g., temporarily limiting access to the Internet to preserve operations security or to address bandwidth contrasts).