For those service members who used 3M’s trademarked, dual-ended Combat Arms earplugs between 2003 and 2015, the aforementioned design blunders allegedly resulted in hearing loss, tinnitus and loss of balance.
Documents from previous lawsuits against 3M, filed on behalf of service members and the Defense Department, show that the manufacturing company was aware that their earplugs were inadequate as early as 2000, but withheld this information for another 16 years.
16 years!!!!!
https://www.militarytimes.com/news/your-military/2022/08/29/bankruptcy-denied-in-3m-earplug-lawsuit-legal-battle-continues/