Credible threats can be against financial centers.Logical formLearned from2 sentences. (Policy steps) can be credible.Logical formLearned from2 sentences. Steps can be credible.Logical formLearned from2 sentences. (Community leaders) can be credible.Logical formLearned from2 sentences. A credible threat may be directed against a country.Logical formLearned from2 sentences. (Defense witnesses) can be credible.Logical formLearned from2 sentences. A victory can be credible in_the_face_of a boycott.Logical formLearned from2 sentences. A triumph can be credible.Logical formLearned from2 sentences. Credible threat of attack may force cancellation of some (transatlantic flights).Logical formLearned from2 sentences. A memo can be credible.Logical formLearned from2 sentences. Intelligence can be credible to American persons.Logical formLearned from2 sentences. Credible threat of attack may force cancellation of some flights.Logical formLearned from2 sentences. A spokeswoman may speak of a credible threat of an attack.Logical formLearned from2 sentences. A credible threat may involve planes.Logical formLearned from2 sentences. A (security infrastructure) can be credible.Logical formLearned from2 sentences.