Foreign Minister Tzipi Livni urged the United States to stand firm against Iran's nuclear program and extremists in the region during a telephone conversation she held on Monday with Vice President-Elect Joe Biden. She also thanked Biden for the work he had already done on behalf of Israel and said she looked forward to working with him in the future. Besides Livni, Biden also spoke with Defense Minister Ehud Barak and Likud Party leader Binyamin Netanyahu for the first time since being elected vice president. 11/11/08