Stephane Cardinale/Corbis via GettyCarla Bruni-Sarkozy, the wife of former French President Nicolas Sarkozy, has been questioned as a suspect in a witness-tampering case against her husband, according to local media reports Thursday.The 56-year-old supermodel was questioned as a witness in the case last year but is now considered a suspect, according to Le Monde. The witness tampering case is linked to allegations that her husband accepted money from Muammar Gaddafi, the late Libyan autocrat, to