'Who is at fault?' Investigation into Texas blackout begins
By PAUL J. WEBER and DAVID KOENIG, Associated Press AUSTIN, Texas (AP) — The catastrophic Texas blackout was a wider failure than the state's power grid, which teetered on the brink of an even bigger collapse during a freeze that knocked out electricity to 4 million customers, energy executives said Thursday. One CEO said he sounded warning days before what became one of the worst power outages in