Photo Credit: Staff Sgt. Natalie Hedrick, 3-3 Public Affairs
First Lt. Matthew Dandola, a civil affairs team leader attached to the 1st Battalion, 15th Infantry Regiment, 3rd Heavy Brigade Combat Team, 3rd Infantry Division, talks to local children Feb. 16, 2010, as leaders of the 1st Bn., 15 Inf. Regt., the Diwaniyah Provincial Reconstruction Team and members of the Director General take soil samples in Diwaniyah, Iraq. The samples were taken to determine if land was suitable for "tunnel houses," low-tech versions of greenhouses.