Why was the Center for Disease control established in Atlanta? To help monitor the large public school population in this area.
To help monitor the large senior citizen population who was moving to the South.
To help monitor the large under serviced population in this region.
To help monitor the large number of returning soldiers who could be carrying infectious diseases.

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.