2021 - although this article isn't?! Discussions at the time:<p><i>USS Connecticut (SSN 22) struck an object while submerged on Oct. 2</i> (167 points, 173 comments) <a href="https://news.ycombinator.com/item?id=28792804">https://news.ycombinator.com/item?id=28792804</a><p><i>Top officers of a Navy nuclear sub have lost their jobs over undersea collision</i> (68 points, 129 comments) <a href="https://news.ycombinator.com/item?id=29117277">https://news.ycombinator.com/item?id=29117277</a>