BALTIMORE - Chief Petty Officer Aaron Foster, a Marine Science Technician at Coast Guard Sector Baltimore, uses a hammer drill to remove cement for a new walkway during a Habitat for Humanity renovation in Brooklyn, Md., March 11, 2010. Although Foster does not claim to be much of a handy man, his efforts will give a low-income family the opportunity to afford their own home. U.S. Coast Guard photo by Petty Officer 3rd Class Robert Brazzell.