Facebook fears

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Across
  1. 2. Official instructions or rules (10)
  2. 4. Able to be recovered or obtained again (11)
  3. 7. Results or effects of an action (12) or occurring everywhere (11)
  4. 10. Limits that define acceptable behavior (10)
  5. 11. To reach the same level or standard as someone else (4,2,4)
  6. 13. Not fully developed or mature (8)
  7. 16. Basic principles; starting points (6,5)
  8. 17. Lasting forever; without change (11)
  9. 18. Lasting indefinitely; not temporary (9)
Down
  1. 1. Not paying enough attention; thoughtless (8)
  2. 3. Certain; beyond doubt (14)
  3. 5. A period of ten years (6)
  4. 6. Causing emotional pain (8)
  5. 8. A false, damaging statement about someone (8, second word “comment”)
  6. 9. To reveal or make known information (8)
  7. 12. To measure or estimate something (5)
  8. 14. To watch or check something regularly (7)
  9. 15. To strongly desire or push for something (4)