Senator Dianne Feinstein—who traditionally is a stalwart defender of the intelligence community—came out swinging against them this week. While on the floor of the Senate, she laid bare a two year long struggle concerning CIA spying on Senate Intelligence Committee staffers investigating CIA's early 2000s torture and enhanced interrogation techniques. The spying by CIA crosses a line when it comes to Congressional oversight of the intelligence community. And it's an emblem of the extreme imbalance between the power of Congress and the power of the intelligence community. If the intelligence community thinks they can act in such a way towards the people who are supposed to oversee them, what else do they think they can do?

How Did This Happen?

According to Senator Feinstein, the spying occurred in a facility provided by CIA to Senate Intelligence staffers. As part of the investigation, CIA agreed to not interfere with the facility or with the Senate Intelligence staff's computers. After the staffers found a smoking gun document (an internal CIA review) that contradicted CIA's own conclusions, the staffers—just like with previous documents—transferred it back to their own facility in the Senate. Soon after, the CIA found out about the possession and deleted files on the Senate staffers' computers not once, but twice. Over 800 documents were deleted. Staffers do not know what those deleted documents contained.

The Oversight Regime Must Be Fixed

Senator Feinstein's speech is the first step to ensuring Congressional oversight prevails, but the Department of Justice, which is currently conducting an investigation, should not be the only entity to review the details. The latest breach of trust by the intelligence community must spur Congress to exert their oversight powers and begin a full investigation into these actions and the oversight regime at-large.

These are pressing topics. It's clear that the lack of oversight was a key factor in many of the egregious intelligence activities we learned about from the documents provided by Edward Snowden. The intelligence community evaded answering questions fully, or providing key documents to the intelligence committees. CIA spying is more proof that the oversight regime needs an overhaul. First and foremost, the American people—and Congress—need an oversight regime that works.

A Long Term Pattern

Some people are aghast at CIA's actions. Details about the spying are sparse; however, it seems CIA may be guilty—at the minimum—of obstruction laws. But we've seen this before from the intelligence community. And we don't have to draw from examples in the 1960s and 70s when the intelligence community was spying on Martin Luther King Jr. or anti-Vietnam activists. All we have to do is look at the past decade.

After the attacks on September 11, it took years for Senator Jay Rockefeller—then the chairman of the Senate Intelligence Community—to get a briefing and key documents for the entire committee about intelligence community actions. More recently, we saw obfuscation by the intelligence community in 2009 when it misled the FISA court. And just last year, the Director of National Intelligence, General James Clapper, lied to Congress about collecting data on innocent Americans. We also know members of Congress describe intelligence briefings as a game of 20 questions. Despite CIA's original cooperation, it seems clear CIA did not want the Senate staffers to conduct a full investigation.

It should be obvious to anyone that these actions paint a picture—and confirm a pattern—of out-of-control intelligence agencies. The American public is losing a tremendous amount of trust in the intelligence community—trust that is necessary for the intelligence community to conduct its job. But it's even more dangerous to the government body that is supposed to oversee the intelligence community: Congress.

Congress Must Act

Senator Feinstein's concern over CIA spying on her staff should extend to a concern about NSA's collection of all Americans' calling records. Both actions are examples of intelligence community overreach and abuse of their authorities. There are serious problems when the stalwart defender of the intelligence community takes to the Senate floor to discuss problems with the committee's oversight.

Beyond Senator Feinstein, Congress must retake its oversight role. For far too long has the intelligence community run roughshod over the intelligence committees. Time and time again, we've seen the inability for the intelligence committee to grapple with the behemoth of the intelligence community. This must stop. An investigation should be carried out not only into CIA spying, but into the oversight regime as a whole, the classification system, and the egregious actions by the intelligence community—including the activities of NSA. All of these topics are core problems concerning the inability for the Senate Intelligence Committee to be fully briefed—or even grasp—intelligence community actions. This week may have been a loss for Congressional oversight, but members of Congress must reassert their power. Their duty to serve as representatives of the American people demand it.