Earlier this week, Palestinian Authority President Mahmoud Abbas agreed to form a national unity government with Hamas. In so doing, Abbas crossed a bright red line that should disgust all who seek peace. Hamas is a terrorist organization that is recognized as such by both the United States and the European Union. To this day, Hamas refuses to recognize the State of Israel and refuses to renounce terrorism. Quite to the contrary, Hamas has claimed credit for suicide attacks that have killed hundreds of Israeli civilians and has launched tens of thousands of missiles into Israel. The Hamas charter doesn’t only call for the death of all Israelis; it calls for the death of all Jews. By reaching out to Hamas, Abbas has turned his back on peace.