Thermal Scanners Hunt for Swine Flu

Naturally, not all elevated temperatures can be attributed to swine flu, but the thermal scanners give authorities a very effective tool.
Xinhua / Landov

Monitor
Naturally, not all elevated temperatures can be attributed to swine flu, but the thermal scanners give authorities a very effective tool to determine which of the millions of passengers traveling by plane each day should be questioned.

Get the Latest Photos from Time.com
Get TIME photos and pictures of the week delivered directly to your inbox.