The following editorial appeared in Wednesday's Washington Post: Despite not being on the official guest list, the couple from Front Royal, Va., have insisted for a week that they were indeed invited to the Nov. 24 state dinner for the prime minister of India. They broke their public silence on the 'Today' show Tuesday. But they didn't answer a key question: Who invited you? Yes, we'd like to know, too. This is about more than the spectacle of Tareq and Michaele Salahi adding another series of celebrity photos to their Facebook ego wall. This is about the potential danger to the president revealed by their caper. A Pentagon official who acknowledged being approached by the Salahis for an invitation released a statement Monday saying she made clear to the couple that she couldn't help them. They showed up anyway. Protocol, and White House security, were breached when the uniformed Secret Service officer failed to verify with a staffer from the social office the guests' names, which were missing from the list in the agent's possession. Mark Sullivan, director of the Secret Service, took responsibility for the security lapse. An internal investigation is under way. The Salahis say they are cooperating. But the results of the probe might not be made public. We understand the agency's usual tight-lipped posture, but in this case that's unacceptable. Mr. Sullivan must find a way, without jeopardizing presidential security, to tell the public the results of his inquiry and to reassure the nation that corrective measures have been taken. The Salahis promised NBC's Matt Lauer that they'd go to New York soon to tell all and show documentation to prove they had clearance to attend the event once they clear a few hurdles. We'd encourage them to reorient their priorities. Rep. Bennie Thompson, D-Miss., chairman of the House homeland security committee, has invited them to appear Thursday at a hearing on the security breach. And we'd encourage them to be more forthcoming with Mr. Thompson than they were with Mr. Lauer. Late Tuesday night, the Associated Press reported that the Salahis admitted, in an e-mail to the Pentagon official, that they went without a confirmed invitation in hopes of being added at the last minute. They claimed that a dead cellphone battery led them to miss a voice-mail message telling them they weren't on the guest list. If they want to lose the 'party-crasher' label, they'll have to do better than that. 