4/26/2012 - HANSCOM AIR FORCE BASE, Mass. – Lt. Col. David McIllece, 46th Test Squadron Det. 1 commander, pulls trash from the Shawsheen River during the base’s Earth Day Cleanup April 23. Volunteers from across the base took part in cleaning up Hanscom’s wetland and Shawsheen River areas. (U.S. Air Force photo by Mark Wyatt)

4/26/2012 - Lt. Gen. CR Davis, Electronic Systems Center commander, speaks to ROTC cadets about leadership at the annual Armed Forces Communications and Electronics Association/Association of Old Crows ROTC Scholarship Luncheon at the Burlington Marriott April 20. More than 20 scholarships were awarded to cadets from ROTC programs throughout New England. (U.S. Air Force photo by Mark Wyatt)