MOSCOW, Aug. 7 (UPI) -- The more concessions the "Iran Six" nations of the United States, Russia, Britain, Germany, France and the People's Republic of China make to the Islamic Republic of Iran on the nuclear issue, the more capricious political leaders in Tehran become.

Iranian President Mahmoud Ahmadinejad actually has made the Islamic Republic's nuclear program a hostage of his campaign for the 2009 presidential elections.

This time the United States and Israel have gone further than ever before. The U.S. Congress has instructed the U.S. Department of Defense to immediately start talks with the Israeli government on the placement of a ballistic missile defense radar in Israel "to defend against threats from Iran and Syria."

U.S. congressmen sent a letter to President George W. Bush strongly urging him to deploy the early warning AN/TPY-2 radar to Israel as soon as possible and reminding him that Iran has tested "nine long- and medium-range missiles, including an upgraded Shahab-3 intermediate-range ballistic missile capable of reaching Israel." The radar will ensure the destruction of Iranian Shahab IRBM missiles by Israeli interceptors.

Israel intends to buy from the United States the Vulcan Phalanx missile defense system, which can down short-range missiles such as the Qassam, which Hamas, the Islamic Resistance Movement that controls Gaza, and the Iranian-backed Shiite Hezbollah -- party of God -- in southern Lebanon have used to shell Israel.