“What we’ve seen in the past two-and-a-half years has been completely different,” said Sanger. “It has been attacks by the executive branch on various parts of the executive branch for providing information that the president found to be highly politically inconvenient… That is something we haven’t seen before.”

Whether these hostilities are a temporary feature of the current administration or part of a permanent presidential playbook remains to be seen, he added.

Mowatt-Larssen said he sometimes feels queasy when he sees former intelligence colleagues on television discussing national security concerns about the current administration, but he understands their motivation. “They feel obliged to speak out in the name of truth.”

The digital era presents significant challenges with which the intelligence field is still wrestling.

Since the theft of classified U.S. government data by Edward Snowden, Chelsea Manning, and others and its subsequent public disclosure via WikiLeaks, the debate over whether U.S. intelligence is more principled than its counterparts in authoritarian states such as Russia, China, or North Korea has roiled in recent years.

While most of the focus has been on the ethics of the government’s activities, like surveillance of U.S. citizens, those disclosures did “real harm” to U.S. national security, and raised an issue that doesn’t get enough attention, Rogers said: “What about the morality of whistleblowers? They decided their moral obligation was to share it with the world even though they didn’t understand 99 percent of the decisions or the oversight” that went into what was done — or have a window onto how the information they exposed fit into the much bigger national security picture.