Cummins employees, led by workers at the Columbus Engine Plant (CEP), are making a huge difference in the lives of some southern Indiana tornado victims. More than 250 employees from Columbus, Walesboro and Seymour in southern Indiana are providing a big share of the muscle behind Habitat for Humanity’s campaign to build 10 homes for families in Henryville, Ind. by the end of December. The community, tucked along Interstate 65 about 20 miles north of Louisville, Ky., was hard hit by tornados that devastated parts of the state last March.