The gloomy headlines for Caterpillar Inc. continue. The Peoria, Ill.-based equipment manufacturer (NYSE: CAT) said Friday it’s laying off 460 workers at its plant in Decatur, Ill., or 11 percent of the work force there, according to various media reports.The announcement comes a week after Caterpillar said it would temporarily cut up to 300 production jobs in South Milwaukee, or about 40 percent of the unionized work force there.But the Decatur cuts are permanent, Reuters reported.The company has cited a need to “bring production in line with demand” in both decisions.The series of actions include “some short-term temporary layoffs and...