"0"^^ . . . . "blue wall"@en-us . "wall of silence"@en-us . "101050356"^^ . . "blue wall of silence"@en-us . . "100989681"@en-us . . "the secrecy of police officers who lie or look the other way to protect other police officers; \"the blue wall cracked when some officers refused to take part in the cover-up\""@en-us . . . . "blue wall of silence"^^ . "01050356-n"^^ . "0"^^ . . .