Possible Clues:

• Lengthy reproval
• People must be disturbed to read it
• City has diplomacy when this is read
• What gets read to rabble-rousers
• Read the - - , warn or reprimand severely
• Metaphorical reading to a misbehaving kid
• Citator of law concerning public affray
• It's read as a warning from Brazilian port to adopt diplomacy
• Reading to the unruly
• Earlier capital diplomacy used to deal with unrest