Drugs gangs bring death and terror in Mexico
28 October 2010 Last updated at 17:19 BST
Mexican President Felipe Calderon has told the BBC the US should do more to reduce the demand for drugs that is fuelling violence in Mexico.
He told the HARDtalk programme that more should also be done to stem the flow of illegal weapons from the US.
More than 28,000 people have died in drug violence in Mexico since 2006.
Stephen Sackur reports.