Jeffrey Sachs: When the leader of Iran was assassinated by the United States and Israel on February 28, senior Iranian officials gathered at his residence to discuss the next round of diplomatic talks with the United States, which were to take place in Vienna. They went to war to kill people who were negotiating. Jeffrey Sachs: During the assassination of Iran's leader by America and Israel on February 28, senior Iranian officials gathered at his residence to consult about the next round of diplomatic negotiations with America, which were to be held in Vienna. They went to war to kill the people who were negotiating. Jeffrey Sachs: During the assassination of Iran's leader by America and Israel on February 28, senior Iranian officials gathered at his residence to consult about the next round of diplomatic negotiations with America, which were to be held in Vienna. They went to war to kill the people who were negotiating.