2 ex-federal officials say U.S. electrical grid , other infrastructure targeted . Baer said if the software was embedded by a foreign government , he doubts it would be used to launch a surprise attack . Homeland Security does n't confirm a breach , says no damage caused by one . Comment:
2 ex-federal officials say U.S. electrical grid , other infrastructure targeted . Homeland Security does n't confirm a breach , says no damage caused by one . Comment: