A passenger passes by an Amtrak train September 3 2015 at Union Station in Washington DC US Secretary of Homeland Security Jeh Johnson held a press...
{"Image ImageDescription": "WASHINGTON, DC - SEPTEMBER 03:  A passenger passes by an Amtrak train September 3, 2015 at Union Station in Washington, DC. U.S. Secretary of Homeland Security Jeh Johnson held a press availability to discuss Operation Railsafe.  (Photo by Alex Wong/Getty Images)", "Image Copyright": "2015 Getty Images"}