WASHINGTON— Secretary of Homeland Security Jeh Johnson and China Customs Minister Yu Guangzhou discuss progress on a number of customs and law enforcement issues since Secretary Johnson visited Beijing in April 2015 in a meeting in Washington D.C., June 23, 2015. During the meeting, Secretary Johnson and Minister Yu signed a Declaration of Principles that will expand the Container Security Initiative (CSI) in China to better adapt to and prioritize threats and customs violations, including intellectual property enforcement, narcotics, and precursor chemicals. Official DHS photo by Barry Bahler.