To Publish or Not to Publish: Charlie Hebdo and American Media

American news media are divided over whether to publish the images that infuriated Muslim extremists and apparently led to yesterday's massacre at Charlie Hebdo. The Washington Post has published a cartoon of the Prophet Mohammed saying "100 lashes of the whip if you don't die laughing." The Associated Press, the New York Times, CNN and NBC have declined to publish similar images. What's the relationship between journalism and satire? Do journalists need to take risks in support of satire?