Feds order security review after a string of attacks, vandalism on the U.S. power grid

Attacks on the nation’s power grid are suddenly on the rise, according to federal regulators, who are now weighing additional security requirements for power stations to fend off vandalism.

Some of the attacks were with gunfire which cut off electricity to thousands of customers since October.

The latest incident happened on Christmas Day in Washington state. Thousands of homes lost power after vandals broke into four power substations and damaged equipment, in one instance causing a fire. Law enforcement officials have yet to solve six prior attempts to sabotage electrical...