article. More than one-third of the Netherlands' 475 mosques have experienced at least one incident of vandalism, threatening letters, attempted arson, the placement of pigs' heads, or other aggressive actions in the past 10 years. http://aje.io/y5ea

http://www.aljazeera.com/indepth/features/2014/12/dutch-muslims-concerned-mosque-attacks-20141226131025788306.html