The Bush administration told a judge in Detroit that the president's warrantless domestic spying is legal and constitutional, but refused to say why. The judge should just take his word for it, the lawyer said, because merely talking about it would endanger America. Today, Senator Arlen Specter wants his Judiciary Committee to take an even more outlandish leap of faith for an administration that has shown it does not deserve it. Mr. Specter wants the committee to approve a bill he drafted that tinkers dangerously with the rules on wiretapping, even though the president has said the law doesn't apply to him anyway, and even though Mr. Specter and most of the panel are just as much in the dark as that judge in Detroit. The bill could well diminish the power of the Foreign Intelligence Surveillance Act, known as FISA, which was passed in 1978 to prevent just the sort of abuse that Mr. Bush's program represents. This is not a time to offer the administration a chance to steamroll Congress into endorsing its decision to ignore the 1978 intelligence act and shred constitutional principles on warrants and on the separation of powers. This is a time for Congress to finally hold Mr. Bush accountable for his extralegal behavior and stop it.