A Submarine Cover Story we can all believe

Have you noticed the date? Here is an excerpt from the related 1917 interview with Nikola Tesla:

Nikola Tesla, the Famous Electric Inventor, Has Proposed Three Different Electrical Schemes for Locating Submerged Submarines. The Reflected Electric Ray Method is Illustrated Above; the High-Frequency Invisible Electric Ray, When Reflected by a Submarine Hull, Causes Phosphorescent Screens on Another or Even the Same Ship to Glow, Giving Warning That the U-boats Are Near.
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Were Dr. Tesla's concepts relevant to submarine and anti-submarine development over the next 100 years? Some would even go so far as connecting some of Tesla's concepts to HAARP (High-Frequency Active Auroral Research Project). Regardless, he was way ahead of his time in applied physics, and MAD (Magnetic Anomaly Detection ) still being utilized and developed, even for UAVs (Unmanned Aerial Vehicles ).
Submarines have always evoked the height of technology.
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Submarines are always silent and strange.