File:Zombiewarning.gif

This is a cropped close-up of the image found on Flickr here, with the following description:

"In this photo provided by Chris Nakashima-Brown, an electronic road sign is seen in Austin, Texas on Monday, Jan. 26, 2009. Two electronic signs intended to warn motorists of construction near the intersection of Lamar and Martin Luther King boulevards were changed yesterday by hackers. (AP Photo/Chris Nakashima-Brown) ** MANDATORY CREDIT **"

The use of this cropped, medium-resolution image in a context of academic analysis and review to illustrate a category of related subjects is considered fair use.