The purpose behind terrorism is to instill fear in people - the fear that electrical power, for instance, will be taken away or the transportation system will be taken down.
If you are close to your parents or a grandparent, you watch as they get old and you learn so much from that, and it makes you want to learn more while you have time.
I think rap definitely has its place in the art world. I think it is an art form. But, just like any art form, you can misuse it.