LostInLA07 said:
Does the US government have the authority currently to mandate quantitative or restrict US citizens from returning to the country based only on their travel history? I'm guessing not but we should absolutely be screening people for symptoms. With the $8B congress just authorized it seems like we could test all citizens returning from outbreak areas upon arrival.
Yes, they do have authority to mandate a quarantine. There is currently one in effect for travelers from China.
https://www.cdc.gov/coronavirus/2019-ncov/travelers/from-china.html