A protester carries an Egyptian flag and hangs it on the top of a traffic light post at
Tahrir Square in Cairo January 30, 2011. REUTERS/Asmaa Waguih
From a great collection of photos of the Egyptian revolution. (If you click on the photo to enlarge it, you'll notice the Che t-shirt.)
I've been asking friends who have lived in Cairo about the kufiya. In the early nineties, when I lived there, it was hardly to be seen. A friend of mine who was there at the same time says he only saw it among a small group of leftists, who put it on for revolutionary and Palestine-solidarity reasons. A friend who has been in Cairo the last couple years claims it is/was hipster garb. If the latter is (partially) true, then, these are very different hipsters from the US variety. These have been politicized and are important troops of the revolution.
See this, for instance. I think I see some kufiyas here. Even if not, this is the so-called "hipster" kufiya demographic. Now turned revolutionary. (Was that a Moz t-shirt I saw?)