How long did it take to clean up after 9 11?

Related questions

1. How much did it cost to rebuild the twin towers?
2. Which is taller Willis Tower or Empire State Building?
3. Which is taller Empire State or Freedom Tower?
4. Is the One World Trade Center the tallest building?
5. Did they rebuild the twin towers after 9 11?
6. What is the really tall skinny building in NYC?
7. How long is Freedom Tower Tour?
8. Do the twin towers still exist?
9. How could the twin towers collapse?
10. What is better Empire State or Top of the Rock?

Tags

1. #recovery
2. #trade
3. #employees
4. #passed
5. #given
6. #september
7. #additional
8. #complex
9. #workday
10. #center
11. #rescue
12. #worked
13. #after
14. #clean
15. #wreckage
16. #million
17. #towers
18. #world
19. #months
20. #through
21. #attacks