https://news.usni.org/2018/12/11/investigation-confirms-wwi-cruiser-uss-san-diego-sunk-u-boat-mine?utm_source=USNI+News&utm_campaign=499f6db10d-USNI_NEWS_DAILY&utm_medium=email&utm_term=0_0dd4a1450b-499f6db10d-233996129&ct=t(USNI_NEWS_DAILY)&mc_ci...