Knowing your client is key to anti-money laundering regulations. But a French probe of the Irish arm of American financial services firm Western Union uncovered multiple system failures – even when red flags were raised internally. The sanctions committee of financial watchdog ACPR (Autorité de Contrôle Prudentiel et de Résolution) imposed a €1 million fine on the payment transfer subsidiary under anti-money laundering regulations last year, newly published documents show.  It followed a one-day disciplinary hearing, where Western Union successfully sought to have the hearing in private, but the resulting decision was issued publicly. Western Union Payment Services Ireland Ltd…