Integra: Yomiko Readman was no traitor. She burned down the British Library to stop you from doing something. Give me one good reason why I should trust you.
Joker: We’ve been experimenting with I-jin. When Readman found out, she…disapproved.
Integra: We’ve known for years that you’ve worked with I-jin. Readman carried out a mission with a partner who was I-jin…
Joker: All right, all right!
Training adults — I-jin or paper users — is a long and cumbersome process. Not to mention, they’re prone to being rebellious. So we’ve been working with children. Talented, potentially deadly, infinitely malleable children.