Obama speaks at National Peace Officers Memorial Service (25 images)

Police officers from accross the country attend the 32st Annual National Peace Officers’ Memorial Service at the West Front Lawn of the U.S. Capitol in Washington, DC on May 15, 2013. Senior officials including President Barack Obama attend the annual event to honor law enforcement who were killed in the line of duty in the previous year. UPI/Olivier Douliery/Pool

U.S. President Barack Obama speaks during the 32st Annual National Peace Officers Memorial Service at the West Front Lawn of the U.S. Capitol in Washington, DC on May 15, 2013. Senior officials including President Barack Obama attend the annual event to honor law enforcement who were killed in the line of duty in the previous year. UPI/Olivier Douliery/Pool

U.S. President Barack Obama flanked by Attorney General Eric Holder and Secretary of Homeland Security Janet Napolitano attend the 32st Annual National Peace Officers Memorial Service at the West Front Lawn of the U.S. Capitol in Washington, DC on May 15, 2013. Senior officials including President Barack Obama attend the annual event to honor law enforcement who were killed in the line of duty in the previous year. UPI/Olivier Douliery/Pool

U.S. President Barack Obama attends the 32st Annual National Peace Officers Memorial Service at the West Front Lawn of the U.S. Capitol in Washington, DC on May 15, 2013. Senior officials including President Barack Obama attend the annual event to honor law enforcement who were killed in the line of duty in the previous year. UPI/Olivier Douliery/Pool