The letters q, x and w have long been illegal in Turkey due their use in the Kurdish language. (It was illegal to speak Kurdish until the early 1990s although many residents of East Turkey knew no other language.) The 3 offensive letters were not needed for Turkish words.
Finally, the Turkish government will lift the ban on q, x, and w as the peace process inches ahead, There is still much to be accomplished, as Kurdish, the first language of thousands of Turkish citizens, is not spoken in public schools. However, it is finally legal to spell Newroz, a Kurdish holiday, correctly.
see more at http://www.pri.org/stories/2013-10-04/turkey-set-end-ban-several-letters-alphabet