A Chinese amateur military historian reported to the Chinese Ministry of State Security that whilst examining discarded books, on sale for less than $1 at a local recycling station, he found that there were four confidential military documents.
After purchasing the documents, the man handed them over to Chinese officials.
This story was reported first by a social media account belonging to the Chinese Ministry of State Security.
According to the Chinese state, an investigation by state security agents found that workers at the recycling plant were selling documents scheduled for shredding illegally.