Not sure if this has been posted. Did a search for 3M but tough to sift through results of such a short search term
3M May Settle Lawsuits Over Defective Military Earplugs For Over $5.5 Billion, Report Says
Thousands of military service members have said faulty earplugs produced by 3M led to hearing loss or tinnitus, the No. 1 most-reported service-related disability among veterans.
www.forbes.com