Edwards raps excess greed DES MOINES - Democrat John Edwards yesterday released a plan he said would demand corporate responsibility, including limits on executive compensation packages and requirements that big businesses operate more openly. The presidential candidate said his plan would also restore retirement security for the middle class through tax overhauls and savings help, allowing more people to put aside money and purchase stock from companies. He said those companies would perform better for regular workers under his proposed corporate changes. Edwards said that a culture of greed has taken over and that while profits are skyrocketing on Wall...