"Hmm, I've read the report. But he was originally from the Stargazing Society, and everyone was actually on guard."
"Yes, our original purpose was to keep him under close surveillance. The information he could get his hands on was either strictly controlled or specifically 'tailored' for him. I was personally responsible for this matter, and I didn't allow any core secrets to be leaked under any circumstances."
"Of course, I couldn't be sure at the time whether he really was a spy. But this strict observation period had lasted for at least ten years, and all these matters are recorded in the files. Even if I quit or he was transferred elsewhere ahead of time, he wouldn't escape the related scrutiny; otherwise, we couldn't justify it."
"And yet, instead of ten years, he exposed himself in just a few months." Li Hengshu flicked the cigarette butt between his fingers, "Wasn't it all in vain then?"