The health effects described are also similar to what you can get with a severe black mold infestation. Although if they've already taken apart the walls lookin

The health effects described are also similar to what you can get with a severe black mold infestation. Although if they've already taken apart the walls looking for electronic devices then presumably they would have noticed that. (Specifically I'm taking about things like immediate and unexplained brain damage, bleeding, hearing and vision loss, confusion, pain, lethargy, etc.)