In its Twombly decision the Supreme Court held that an antitrust complaint failed because its allegations did not include enough “factual matter” to justify proceeding to discovery. Two years later the Court extended this new pleading standard to federal complaints generally. Twombly’s broad language has led to a broad rewriting of federal pleading doctrine. Naked market division conspiracies such as the one pled in Twombly must be kept secret because antitrust enforcers will prosecute them when they are detected. This inherent secrecy, which the Supreme Court did not discuss, has dire consequences for pleading if too much factual specificity is required. Indeed, it can close the door in cases where the conspiracy is reasonably suspected bu...