Understanding someone means attempting to discover what that person means by his or her speech. Not what you first think the utterance might mean. Take the word "innocent." Here is a link to a video of a BBC interview with a radical Muslim. In the interview he affirms that non-Muslims are by definition not innocent since they have rejected Islam.

So, therefore, please be aware that in the mind of a radical Islamist, no Western civilian is really an innocent life. What you mean by "innocent life," is not the same thing that a radical Muslim means by "innocent life."

In commenting on this video, Jihadwatch observes "Choudhury can and no doubt does easily support his view from the Qur'an, in which Jews and Christians are under Allah's curse (9:30) and unbelievers are the "vilest of creatures" (98:6)."