Individuals requiring access to Sensitive Compartmented Information (SCI) typically need which of the following?

Individuals requiring access to Sensitive Compartmented Information (SCI) must undergo a more extensive national security background investigation. This thorough investigation is critical due to the highly sensitive nature of SCI, which can include information on intelligence operations, sources, methods, and other classified data that, if disclosed, could harm national security.

The rigorous investigation process includes a review of an individual's personal history, financial records, criminal background, and foreign contacts, among other factors. This multifaceted approach ensures that individuals granted access to SCI meet stringent criteria for trustworthiness and reliability, thereby reducing the risks associated with unauthorized disclosure of sensitive information.

In contrast, the other options propose either reduced or no investigation, which does not align with the security requirements for handling SCI. The nature of SCI necessitates heightened scrutiny to protect national interests, making comprehensive background checks essential for those needing access.