BBC: The zebiba used to be the mark of an elderly Muslim man, the fruit of a lifetime's devotion, but it is increasingly seen on the faces of young Egyptians.
Literally meaning "a raisin", the zebiba is a patch of hardened skin where the forehead touches the ground during Muslim prayers.
Some welcome the trend as a sign of devotion, others say it is ostentatious piety.
Worse still there are fears public displays of faith like the zebiba and the hijab, or headscarf, are spilling over into vigilantism.
Liberals or Christians who don't conform in the workplace or on the street say they are being harassed. Signs of Division on Egypt’s Brow >>> By Magdi Abdelhadi, Cairo | June 23, 2008
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