The Department of Homeland Security (DHS) released the Quadrennial Homeland Security Review (QHSR). The QHSR assesses the ways homeland security has evolved since the DHS was formed and the significant changes to the threats and challenges facing the nation since the last report was issued nearly a decade ago.
These challenges include changes in global migration, human trafficking, domestic violent extremism, strategic competition from nation states, wide-ranging cyber threats, impacts of climate change, emerging infectious diseases and transnational organized crime.