North Carolina substations attack a 'wake-up call' in latest nationwide infrastructure threat

A shooting that damaged two power substations in a North Carolina county, leaving thousands of homes without power, has been deemed a "targeted" attack, as officials warn of threats to the nationwide infrastructure.

Days before the attack, the Department of Homeland Security issued a bulletin through its National Terrorism Advisory System warning that the “United States remains in a heightened threat environment” and “lone offenders and small groups” may commit acts of violence on various targets, including critical infrastructure in the country.