From the initial coverage, it is not clear where the safety system broke down - whether the issue was training, guarding, lockout/tagout or other issue.
As I have said in the past, the time to act is before a tragedy. There are many specific health & safety resources available for recycling operations, including from OSHA, and ISRI. ISRI has useful "2-Minute Drill" videos targeting worker safety.
For more information, visit our health and safety resources section.