The U.S. Supreme Court favored former Air Marshal whistleblower, Robert MacLean, and ruled that he did not break the law when he spoke to NBC in 2003 about the Transportation Security Administration cancellation of overnight missions from Las Vegas. MacLean was the source for an msnbc.com story about the canceled mission which was issued as a potential hijacking plot in a confidential advisory. The story prompted several members of Congress to criticize the cancellations. On Wednesday, the court said his disclosure about the overnight missions was not specifically barred by law.