cartel, the juarez cartel, the beltra levya, la familia michoacana and the particularly murderous los zetasble for importing roughly three quarters of all illegal narcotics to america. in your work, you uncovered what had to be some very embarrassing and incriminating associations and connections between very high elected officials, the presidents and entire administrations, and acts of incredible criminality. how did that change your life? >> well, when i start to make this investigation on 2005 and i really understand that it would be very dangerous. i have to say that it wasn't really a surprise for me what happened after i published my book. what i didn't expect is that the threats came from the federal government. >> anabel says that one of her sources warned her that the biggest threat was from within, that one of the most highly placed, most senior law enforcement officials in mexico had ordered her killed. >> because in my book i put his name and also showed some documents that proves that he was involved, he was in the payroll of the sinaloa cartel. >> what happened to this man? >>