As do we, with more advanced sonar on our boats and on the ocean floor. You Trumpanzees always need your boogeyman. I remember the 'if we don't fight them there we'll be fighting them in Ca' bullshit during the Vietnam War. I asked one domino theory ass-hat....'what, if the Imperial Japanese Navy couldn't get past Midway I'm supposed to sweat the NV patrol boat 'navy'?'