While conspiracy theorists blame the spread of the disease on the migrants themselves, research indicates that severe overcrowding in U.S. detention facilities and shelters on the Mexican side of the border are causing outbreaks.
Hackers got access to photos of border crossers and their license plates this week, raising questions about border authorities' plans to collect reams of sensitive biometric information.
The Trump team is working on a "safe third country" agreement with Mexico, which would make migrants who travel through Mexico ineligible for asylum in the United States.