9/11 heroes

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Across
  1. 4. Emergency medical helper
  2. 6. Warning sound of an emergency vehicle
  3. 8. Serious attention or concern
  4. 10. Full of bravery
  5. 11. Guts, bravery
  6. 13. Person who fights fires
  7. 15. Work done for others
  8. 17. Group working together
  9. 18. A person admired for great deeds
  10. 19. Group of people living together
  11. 20. Firm belief in reliability
  12. 24. Showing no fear
  13. 25. One who rescues
  14. 27. To hold up or assist
  15. 28. Moral or legal obligation
Down
  1. 1. Law enforcement officer
  2. 2. Courageous behavior
  3. 3. Physical power
  4. 5. Giving up something for others
  5. 7. An answer or reaction to a call
  6. 9. Feeling of expectation and desire
  7. 12. Emergency medical worker
  8. 14. Help or assistance
  9. 15. Lively courage
  10. 16. Great courage in the face of danger
  11. 18. High respect
  12. 21. Distinctive clothing for an organization
  13. 22. One who gives assistance
  14. 23. To offer aid
  15. 26. To save from danger