http://www.dhs.gov/who-joined-dhs 22 different agencies merging 22 federal agencies http://www.dhs.gov/who-joined-dhs http://www.dhs.gov/who-joined-dhs http://www.dhs.gov/who-joined-dhs http://www.dhs.gov/who-joined-dhs http://www.dhs.gov/who-joined-dhs 22 agencies http://www.dhs.gov/who-joined-dhs Department of Homeland Security: Who Joined DHS 22 agencies http://www.dhs.gov/who-joined-dhs