Jeh Johnson, a Senior Fellow with the Belfer Center, was Secretary of Homeland Security from December 2013 to January 2017. Johnson is currently a partner with the law firm of Paul, Weiss, Rifkind, Wharton & Garrison, LLP. As Secretary of Homeland Security, Johnson was responsible for the TSA, Customs and Border Protection, Immigration, U.S. Citizenship Services, the Coast Guard, the Secret Service, and FEMA. Here, Juliette Kayyem, Director of the Belfer Center’s Homeland Security Project, asks Secretary Johnson about his experience at DHS.