Related Clues:

• F.C.C. concerns: Abbr.
• Program
• Computer language
• Norms: Abbr.
• Secret language
• Spy's writing
• Binary ___
• See 15-Across
• It may be cracked
• Spy's secret
• Principles
• Criteria: Abbr.
• Pig Latin, e.g.
• Spy's writing, perhaps
• Secret message