roberto campa, deputy minister of the interior, is in charge of the pena nieto administration's violenceprevention program. >> in mexico, small amounts of drugs for personal use are allowed, but sales are illegal. >> many people i've spoken to say that the only way to combat the violence of the drug cartels here in mexico is to legalize drugs, to end prohibition. >> you don't think that eliminating the market for drugs would eliminate a lot of their earnings//that it would strip them of a tremendous economic power? >> mexico's gotten hundreds of millions of dollars to fight the drug war from the united states, there are strong ties between intelligence agencies, drug fighting agencies in the united states and mexico. does that make it difficult for mexico to go its own way on drug policy? >> it's very insignificant, drug consumption in mexico, and yet we have this war. why? because it's to the convenience of united states. they want always war outside of the territory. >> vicente fox is a businessman who was the president of mexico from 2000 to 2006. >> so mexico is in this trap. we have