Israel is stepping up pressure on the Palestinian Authority after the Sabbath eve suicide bombing in Tel Aviv that killed four Israelis and wounded 50. "The state of Israel is interested in moving toward an agreement with the Palestinians, but there will be no progress politically, and I repeat no political progress, until the Palestinians carry out a determined campaign to destroy the terrorist groups and their infrastructure," Sharon said at the weekly Cabinet meeting. He said if the Palestinians don’t act, Israel will. “It's obvious that without a vigorous Palestinian Authority operation against terror, Israel will have to step up its military activities that are aimed at protecting the lives of Israeli citizens," Sharon said.