Jordanian Foreign Minister Nasser Judeh met here on Thursday with Ellen Tauscher, the US Undersecretary of State for Arms Control and International Security Affairs, now visiting Amman, reported Petra News Agency. During the meeting they discussed ties of cooperation between Jordan and the United States especially in the nuclear energy field. The Jordanian Foreign Ministry said the meeting comes as a follow up of meetings and talks held earlier between the two countries to discuss nuclear cooperation in order to sign a cooperation agreement in this domain.