See U.S. Blows Up Tesla Radio Tower (1917) (citing page 293 of the September, 1917 issue of The Electrical Experimenter): "SUSPECTING that German spies were using the big wireless tower erected at Shoreham, L. I., about twenty years ago by Nikola Tesla, the Federal Government ordered the tower destroyed and it was recently demolished with dynamite."
Broad, William J. (4 maj 2009). ”A Battle to Preserve a Visionary’s Bold Failure”. New York Times. http://www.nytimes.com/2009/05/05/science/05tesla.html?hp. Läst 5 maj 2009. ”Today, a fight is looming over the ghostly remains of that site, called Wardenclyffe – what Tesla authorities call the only surviving workplace of the eccentric genius who dreamed countless big dreams while pioneering wireless communication and alternating current. The disagreement began recently after the property went up for sale in Shoreham, N.Y.”