Why is a ninja sword straight?

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Tags

1. #instead
2. #stealth
3. #steel
4. #carbon
5. #stabbing
6. #victims
7. #ninja
8. #closer
9. #samurai
10. #katana
11. #sword
12. #edged
13. #their
14. #elite
15. #straight
16. #motion
17. #because
18. #length
19. #swords
20. #curved
21. #access