Cancer does not have consciousness and doesn't target people intentionally to incite terror in order to impose an ideology. Extremists hate the west and our way of life, our secular society and freedoms as they try to impose their fundamentalist views through random terror attacks on innocents. Comparing terror attacks to cancer is a false equivalency, and a shameful comparison as if death by terror is trivial because relatively few die compared to cancer, implying this is an acceptable loss of life, despicable.