With the Washington Monument in the distance, Park Service police officers stand on duty at the Lincoln Memorial in Washington, Thursday, Oct. 17, 2013. Barriers went down at National Park Service

... more 

With the Washington Monument in the distance, Park Service police officers stand on duty at the Lincoln Memorial in Washington, Thursday, Oct. 17, 2013. Barriers went down at National Park Service sites and thousands of furloughed federal workers began returning to work throughout the country Thursday after 16 days off the job because of the partial government shutdown.(AP Photo/Susan Walsh) less 

1 / 2
Associated Press
Thu, Oct 17, 2013 8:28 PM EDT