Associated Press: A congressional report says the increased use of ethanol could cost the government up to $900 million for food stamps and child nutrition programs. The nonpartisan Congressional Budget Office says higher use of the corn-based fuel additive between April 2007 and April 2008 accounted for about 10 percent to 15 percent of the rise in food prices during that time. That translates into higher costs for food programs for the needy, the report said. CBO says other factors, such as …