Mexico is one of the world's most lucrative drug trafficking routes, with vast quantities of illegal drugs making their way through the country and on to the United States.

Drug cartels use violence to amass enormous wealth
Anabel Hernandez is an investigative journalist who covers politics and drug trafficking in Mexico.
Over the past year, the violence linked to the country's cocaine cartels has seen a dramatic rise.
Explaining her work, Anabel wrote a letter to her 11-year-old daughter, Regina.
Listen Listen to her letter (3 mins 19 secs)
First broadcast 29 December 2008
For more on drug-related violence in Mexico, click here.

