The Transportation Security Administration (TSA) is an example of providing for the common defense today.
The Transportation Security Administration (TSA) is an agency established by the US Department of Homeland Security in November 2011 in reaction to the terrorist attacks of 11 September to protect the whole transportation system of the nation to ensure the free movement of citizens and goods.
This agency is greatly concerned with air travel, therefore the TSA employs screening officers in airports, and armed Federal Air Marshals on planes.
The first three of these postwar amendments the most radical and most rapid social and political change in American history the abolition of slavery (13 th) and the granting of equal citizenship (14 th) and voting rights (15 th) to former slaves all within a period of 5 years.