You've read the sentence a thousand times: "according to sources familiar with the matter." It sounds authoritative and a little cloak-and-dagger, and most readers slide right past it. But that phrase is doing real work — it's the reporter telling you exactly how much they're willing to stake their name on, and how much you should trust what follows. Learn to read it and you can grade a story's reliability from the sourcing line alone. * Here's the first thing to know: "sources" is not a synonym for "anonymous people we couldn't verify." In a serious newsroom, an anonymous source is a named, known person to the reporter and at least one editor — the anonymity is from *you*, the reader, not from the newsroom. The reporter knows exactly who they are, has weighed their motives, and has usually been told to get a second person to confirm the same fact before it runs. The vagueness on the page hides a lot of verification behind it. * The Associated Press — the wire service whose rules most U.S. outlets echo — only allows anonymous sourcing when three conditions are all met: the material is information, not opinion or speculation; it is vital to the story; and it isn't available any other way except under the condition of anonymity (AP Stylebook). That last one matters most. Anonymity is supposed to be a last resort for information that would otherwise never reach you — a whistleblower who'd be fired, an official not cleared to speak. It is not supposed to be a convenience for a source who simply prefers to snipe from the shadows. * Now the vocabulary, because the phrases are not interchangeable — they're a graded scale. The AP recognizes four levels of attribution. **On the record:** the source is named, and you can weigh their credibility yourself. This is the gold standard; everything below it costs you information. **On background:** the information can be published, but only with a description the source agreed to — "a senior White House official," "a person close to the negotiations." **Deep background:** the information can be used, but with no attribution at all — the reporter can state it as fact but can't point to anyone. **Off the record:** the information can't be published at all; it's only there to steer the reporter toward what they can confirm elsewhere (AP Stylebook). * So when you see "a senior administration official said," that's background — someone real, described but not named. When you see a flat assertion with no "official said" attached, that may be deep-background material the reporter confirmed but can't source on the page. And here's the reader's cheat code: the *more specific* the description, the more accountable the source. "A Pentagon official who was in the room" is worth far more than "sources say," because it narrows the pool and signals the reporter is standing closer to the fact. * The single biggest red flag is anonymity used for opinion or attack rather than fact. AP's own guidance bars using anonymous sources for personal opinions or to take a swipe at someone — if a nameless "source" is trashing a rival's character, that's not protected information, it's a knife with the fingerprints wiped off. Good outlets also tell you *why* the source is anonymous. The New York Times and Reuters both require reporters to give a reason for granting anonymity — "because they were not authorized to discuss the matter publicly" — precisely so you can judge whether the secrecy is earned or lazy. * None of this means anonymous sourcing is a scam. Watergate, the Pentagon Papers, the Abu Ghraib photos, most of what we know about intelligence agencies — none of it would exist without sources who'd have been destroyed for talking on the record. The convention exists to pry loose true things the powerful want hidden. The problem is the same convention can be abused to launder a spin doctor's talking point as neutral fact, and from the outside the two look identical. * So read the sourcing line like a credibility gauge. A named source beats a described one; a described one beats "sources say"; a source with a stated reason for anonymity beats one without; and a nameless voice offering *facts* is worth taking seriously, while a nameless voice offering *insults* is worth ignoring. "According to sources" isn't a shrug — it's a measurement. Once you know the scale, the phrase stops being background noise and starts telling you how far out on a limb the reporter actually went.