According to Google Translate, the literal translation of the Latin phrase '" in English is "the Lord is the night". Other sources suggest the translation is "hail the Lord of the night".
A bit of a trivia, Latin is an ancient language that is officially adopted in only one country, which is Vatican. It has no native speakers, most of western countries had influence of this language due to the Roman Empire. Many words based on Latin are found in other modern languages including English. Learn more about Latin's history here.
Speaking of language, airport security screeners like to think they can read body language. The Transportation Security Administration has spent some $1 billion training thousands of “behavior detection officers” to look for facial expressions and other nonverbal clues that would identify terrorists. But critics say there’s no evidence that these efforts have stopped a single terrorist or accomplished much beyond inconveniencing tens of thousands of passengers a year. Read more at The New York Times.