"In undercover work, bad character, mendacity, and survival instincts are tools of the trade.

Andrew McCarthy writes at National Review,

...We are to understand the bureaucracy’s work as unimpeachably noble and that so, therefore, are its tactics. Consequently, the government’s “cooperator” is never to be called a spy. He’s a “confidential informant” or, as the FBI’s former Director James Comey put it in a tweet this week, a “confidential human source.”

These are not neutral terms. The implication is that these operatives are always benign, even vital. A “source” is that most treasured of intelligence assets, to be protected at all costs — even the need for accountability when power is abused must give way to the confidentiality of intelligence “methods and sources.” “Source” connotes a well-placed asset who has bored into the inner sanctum of jihadists or gangsters — an “informant” whose information saves lives.

But there is another side of the story.

...By and large, “confidential informants” do not emerge from the womb with a passion to protect the United States. Quite often, they become informants because they’ve gotten themselves jammed up with the police. Some are sociopaths: shrewd enough to know that the only way out of either a long prison term or a short life expectancy is to become the government’s eyes and ears; self-aware enough to know that, in undercover work, bad character, mendacity, and survival instincts are tools of the trade. Not many Mother Teresas can infiltrate hostile foreign powers, drug cartels, and organized-crime networks.

According to the government, these effective but unsavory operatives are “confidential human sources,” too. To the rest of us, spy may be too nice a word for them. The printable labels are more like “snitch,” “rat,” “Judas,” etc. “Isn’t it a fact that you’re a scumbag?” Yeah, it’s a fact — and yeah, he probably knows.

...In the Trump–Russia affair, officials of the Obama-era intelligence agencies suggest that there are grounds to believe that the Trump campaign was in a traitorous conspiracy with the Kremlin. What grounds? They’d rather not say. You’ll just have to trust them as well-meaning, non-partisan pros who (all together now) can’t be expected to divulge methods and sources.

Countering that are not only Trump fans but growing ranks of security-state skeptics. The Obama administration blatantly politicized the government’s intelligence and law-enforcement apparatus. Their Chicken Little shrieks that public disclosure of FISA warrants and texts between FBI agents would imperil security have proven overblown at best (and, in some instances, to be cynical attempts to hide embarrassing facts). “Trust us” is not cutting it anymore.

In the end, it is not about who the spies are. It is about why they were spying. In our democratic republic, there is an important norm against an incumbent administration’s use of government’s enormous intelligence-gathering capabilities to — if we may borrow a phrase — interfere in an election. To justify disregarding that norm would require strong evidence of egregious wrongdoing. Enough bobbing and weaving, and enough dueling tweets. Let’s see the evidence.

Read more here.