- Robert Klitzman: ISIS has been open about its goal in these outrageous assaults
- Klitzman: Rhetoric from Donald Trump only fuels anger and plays into ISIS's hands
Robert Klitzman is a professor of psychiatry and director of the Masters of Bioethics Program at Columbia University. He is author of "The Ethics Police?: The Struggle to Make Human Research Safe." The opinions expressed in this commentary are solely those of the author.
(CNN)Fifteen years ago next month, terrorists killed my sister at the World Trade Center. She was working at her desk when an airplane annihilated her and thousands of others.