Findings:

• The Confidential Agent
• informant (user)
• naive informant
• native informant
• Informant
• Kicksville Confidential
• Confidential Chats with Girls
• High School Confidential
• L.A. Confidential
• Art School Confidential
• Kitchen Confidential
• confidential (user)
• City Confidential
• confidential tariff
• Junkmail that's marked Personal and Confidential
• Apple Confidential: The Real Story of Apple, Computer, Inc.
• confidential

If you Log in you could create a "Confidential Informant" node. If you don't already have an account, you can register here.