Former CIA Director John Brennan testifies before the House Intelligence...

Former CIA Director John Brennan testifies before the House Intelligence Committee on the Russia election-meddling investigation. Credit: The Washington Post / Melina Mara

President Donald Trump has revoked the security clearance of former CIA Director John Brennan. In and of itself, that isn’t necessarily a problem; Brennan probably doesn’t advise current agency officials much these days.

But as a former CIA analyst and now a law professor who studies national security, I find the reasons the White House gave for the move alarming. Our security is at risk in an era when saying something negative about the Trump administration is characterized as “erratic conduct and behavior,” and becomes a reason to revoke clearances. Getting good intelligence assessments requires different voices and frank assessments, not just people who agree with what the president says.

Cutting off former high-ranking government officials from classified information sends a chilling message to intelligence professionals. That message is that dissent is not welcome. And for intelligence analysts with a family or a mortgage, the prospect of losing a security clearance is grim — it means you lose your job, too. Will CIA employees be worried they may have their security clearance revoked if they don’t go along with Trump’s impulses? How can we attract the “best and brightest” to work in government when the administration shows what it does to people who criticize Trump?

Trump is correct that the executive branch has almost absolute authority on security clearance decisions. People have had their clearances revoked without even learning exactly why, as it is a matter of “national security.”

The Supreme Court is clear — no one has a right to a security clearance, and decisions are not generally judicially reviewable. The only small opening the Supreme Court left open, never successfully used, is when there is a “colorable constitutional claim.” Brennan, along with other past officials the administration may revoke clearances for, such as former FBI director James B. Comey and Obama national security adviser Susan E. Rice, might really have such a claim: exercising their First Amendment right to criticize the president appears to be the reason for the decision.

One of the things that makes the United States intelligence services so unique and adept is their incredible diversity. When I worked at the CIA, if I had trouble translating a difficult Arabic phrase that I could not find in any dictionary, in my office was a native speaker who could tell me what it referred to and give me the background to make sense of it. Having people precisely because they disagreed and had different backgrounds — race, religion, language — is what made us better. Would you join the CIA right now if you were Muslim? Or if you simply disagreed with Trump?

Heidi Gilchrist, an assistant professor at Brooklyn Law School, wrote this for The Washington Post.

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