National Strategy for Homeland Security (2007) in the course content and also available

 Review the National Strategy for Homeland Security (2007) in the course content and also available at https://www.dhs.gov/xlibrary/assets/nat_strat_homelandsecurity_2007.pdf.   This document is now over 10 years old.  Looking at it with the advantage of hindsight, what did it get right and what did it get wrong?   Once you provide your answer,