Exclusive – DHS Sec. Markwayne Mullin Touts Economic Benefits of Secure Border: ‘National Security Brings More Business’Department of Homeland Security Secretary Markwayne Mullin touted the economic benefits of a secure border during a policy event with Breitbart News, noting that national security ultimately "brings more business" to the United States. The post Exclusive – DHS Sec. Markwayne Mullin Touts Economic Benefits of Secure Border: ‘National Security Brings More…Breitbart News Network13d agoWhole story →SecurityEconomydhs border security policy