Basically, <u>two important changes were introduced to the definition of homeland security in 2010</u>. <u>First one</u> was about <em><u>Nation’s homeland security missions. </u></em>These missions are enterprise-wide, and not limited to the Department of Homeland Security. Federal Government, State, local, tribal, and territorial governments, the private sector, and other non-governmental organizations are responsible for executing these missions. The homeland security professionals must have a clear sense of what it takes to achieve this vision. <u>The second change</u> was about <em><u>three key and essential concepts for a comprehensive approach to homeland security: Security, Resilience and Customs and Exchange</u></em>.
It helped them understand things that helped their literature.
A concept of federalism where local, state, and national governments interact cooperatively and collectively to solve common problems separately, but more or less equally (dual federalism).
Hope this helps! :)
<span>They did it to protect their authority
</span>
The encomienda system allowed a colonist to enslave Native Americans, so the end of this system brought about a new search for slaves, eventually leading to the enslavement of Africans.
