US lawmakers call for stronger power grid security after sniper attack

A military-style attack on a electrical substation in California last April nearly shut down power in the state, and raised serious questions about the security of US infrastructure. Now a group of lawmakers are asking industry groups whether the US power grid needs its security improved to keep something like that from happening again. Senator Dianne Feinstein (D-CA) along with three other senators today requested both the Federal Energy Regulatory Commission and the North American Electric Rel...