QUEEN ANNE, Md. -?? Coast Guard Petty Officer 1st Class John Pfaehler, a Sector Baltimore reservist, nails roof-bracing hardware into place during a Homes for Our Troops Build Brigade for Marine Sgt. Christopher Santiago, Nov. 17, 2012. An estimated 150 volunteers from the community, including members of the Coast Guard, spent two days constructing a specially adapted home for Santiago, who lost both of his legs and severely injured his left arm when he stepped on an improvised explosive device while deployed to Iraq in 2006. U.S. Coast Guard photo by Petty Officer 3rd Class Matthew S. Masaschi.