USFeaturedPower Substation Attacks Raise Authorities’ Awareness of Need for Tighter Security Around Key InfrastructureSaveMark Us Preferred on GooglePrintAn unmanned power substation in Arizona is protected by a chain link fence and barbed wire on Jan. 18, 2023. Allan Stein/The Epoch TimesAllan Stein1/31/2023|Updated: 2/8/20230:00X 1BOULDER CITY, Nevada—During World War II, America feared surprise enemy attacks on its electrical power grid plunging the nation into darkness.The military considered Nevada’s Hoover Dam potentially vulnerable as a supplier of hydroelectric energy for the defense industry.We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.