What are some of the ';morales'; that system of a down, scars on broadway, and serj tankian sing about?

Like what are they talking mainly about in their songs, and i remember a verse from Scars on Broadway ';I am, I am Genocide


Mixed with Turkish lies, yeah!';





thanks for helping me further understand such wonderful bandsWhat are some of the ';morales'; that system of a down, scars on broadway, and serj tankian sing about?
here


http://www.songmeanings.net/artist/view/鈥?/a>