Suggestion to the EU- check out details of the terrorist incidents attributed to these monsters, visit ground 0 in NY and talk to the families and rescue workers, do some research into the past work of the UN re. Osama and friends - appeasement and consolation.
You can not negotiate with terrorists. The terrorists know this as an empty threat and care nothing about the counsel of your "wisest" and most influential leaders. They have their own agenda, and it will never include the civilized west, or any other platform, treaty, philosophy, or have any concern for "diplocmacy." You are endangering everyone involved with this effort and innocent citizens aroung the world by naively calling for UN involvement now.