A federal judge in Los Angeles has refused a request by some workers at NASA's Jet Propulsion Laboratory to block a Bush administration directive requiring background checks.
A group of 28 JPL workers said the security checks invaded their privacy and sued in August to overturn the requirements.
NASA maintained it was following a government-wide policy applying to
millions of civil servants and contractors.
U.S. District Judge Otis Wright wrote in a 17-page order that the plaintiffs' claim of irreparable harm is without merit.
Wright's decision comes two days after he told both sides that he was inclined to issue a partial preliminary injunction that would bar NASA from asking JPL workers during background checks whether they had ever used drugs.