From right, A123 Systems Inc. Chief Executive Officer David Vieau, A123 electrical engineer James Fenton and company design engineer Antonio Biundo listen to President Obama at the White House on April 30, 2010. Short of cash and hurting from slow sales of electric cars, A123 filed for Chapter 11 bankruptcy protection on Tuesday. The bankruptcy filing is likely to stoke the debate in Washington over the Obama administration’s funding of numerous alternative-energy ventures. (Associated Press)