The Supreme Court has overturned the convictions of four former employees at the now-defunct Kalki bookstore in Barcelona as well as that of the publisher Molins de Rei, who all were found guilty of fostering xenophobia by selling Nazi literature.
In its ruling, the top court said that selling Nazi propaganda that promotes genocide is only a crime when there exists "a danger that it could create a climate of hostility that would incite violence."


Source: http://www.elpais.com/articulo/english/Top/court/overturns/Nazi/booksellers/convictions/elpepueng/20110605elpeng_1/Ten