Historically, the idea of peace has been represented by symbols that attempt to transcend differences of culture, such as the white dove, the olive branch, and the broken rifle. The now-familiar line-drawing of a crow's foot in a circle was created specifically for the Campaign for Nuclear Disarmament by British artist Gerald Holtom, but it quickly caught on as a general, international sign for peace. Holtom has stated that it is derived from the semaphore flag signals for what two letters? Discuss (http://forum.thefreedictionary.com/postst34028_The-Station-Nightclub-Fire--2003-.aspx)
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