Here is a disturbing idea from Cisco:
Chambers and Chief Demonstration Officer Jim Grubb showed off a camera from FLIR Thermal Infrared Camera Systems that can measure people’s body temperatures. If these cameras were installed at tollbooths to examine drivers, and networked with other such sensors, they could build a picture of how many people in an area had fevers that might indicate a disease such as the flu, he said.
Note that this data could be correlated with the transponder IDs to determine not only how many people have a fever but which specific individuals likely do. Although the intentions may be benign, this is an unacceptable violation of privacy.
Just because I take a toll road does not mean I am giving the government the consent for a remote medical exam.