U.S. Blows Up Tesla Radio Tower

[Dave Monroe]

The Electrical Experimenter, September, 1917, page 293:

U.S. Blows Up Tesla Radio Tower

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. During the past month several strangers had
been seen lurking about the place....

http://earlyradiohistory.us/1917tes.htm