San Jose Evening News, April 23, 1917, page 1:
TREASON TO POSSESS WIRELESS STATIONS
All wireless apparatus must come down immediately is the announcement made by City Manager Thomas H. Reed, who further states that a representative of the government found several wireless outfits in operation here. If these are not dismantled immediately, they will be confiscated until after the war is over, as to maintain a wireless station is treason, said Mr. Reed, and it will be no excuse if they are operated by boys on the order of the war department demands that none shall be operated.