"System Of A Down", the famous American rock-group has begun close cooperation with the Armenian National Committee of America (ANCA). As "Liberty" radio station reports, during the summer concert tour of the rock-group over the US and Canada, the ANCA members disseminated materials on the 1915 Armenian genocide, told American and Canadian music lovers about the monstrous persecutions and slaughter of Armenians in Ottoman Turkey at the beginning of last century.