The New York Times reports a majority of the justices seemed ready to side with a fired air marshal on Tuesday in a Supreme Court argument over whether he was covered by a federal law protecting whistle-blowers. In 2003, the air marshal, Robert J. MacLean, received a secret briefing about a terrorist threat affecting long-distance flights. Two days later, he was told by text message from the Transportation Security Administration that to save money, the agency was canceling assignments requiring an overnight stay. He complained to his superiors, saying the move would imperil public safety. When they failed to act, he contacted a reporter for MSNBC. The resulting news coverage promptly led to a reversal of the travel policy.