Leaders in the Democratic-controlled House and Senate have agreed to rewrite the nation’s surveillance laws and to give what amounts to legal immunity to phone companies that took part in the Bush administration’s secret domestic surveillance program. The bill has been described as the most significant revision of surveillance law in three decades. The legislation gives the government new powers to eavesdrop on both domestic and international communications. One provision would allow the government to wiretap Americans for up to a week without a court order. The House is expected to approve the measure today. The Senate will vote next week. Several prominent Democratic Senators criticized the bill. Senator Russ Feingold said, “The proposed FISA deal is not a compromise; it is a capitulation.”