The legal issue the Justices will confront on Tuesday when they hear oral argument in
Department of Homeland Security v. MacLean is easy enough to describe: When a federal statute bars whistleblowers from making disclosures that are “specifically prohibited by law,” does that bar also apply to disclosures prohibited by otherwise valid agency regulations – or does it only apply to disclosures expressly barred by Acts of Congress? Behind this outwardly straightforward question of statutory interpretation, though, lurk national security considerations on both sides; the government’s case rests largely on its claimed need to broadly protect sensitive security information from unauthorized disclosure, while the underlying whistleblowing highlighted alarming (and since corrected) deficiencies in post-September 11 aviation security.
Inasmuch as the national security undertones of Tuesday’s argument are (and will likely be) impossible to miss, the statute at the heart of the case applies to most government whistleblowers – especially those
not in the national security arena. Thus, even if security concerns arise during Tuesday’s argument (and in the Justices’ ultimate disposition of the case), the irony of the case is that the answer the Justices ultimately provide to the statutory question presented will have significant implications for government whistleblowing in general,
especially in cases having nothing whatsoever to do with protecting the national defense.