Calderon, who has deployed tens of thousands of soldiers and police to fight drug cartels, told Fareed Zakaria's “GPS” program on CNN that there was resistance in Washington to Mexico's demands that sales of such weapons be stopped.
“They (U.S. officials) say that they are facing strong opposition and there is powerful lobbies in the Congress in order to change that situation,” Calderon said in a pre-taped interview in Mexico City.
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The Mexican leader added that solving the cross-border gun trafficking problem was critical to his bid to crack down on the drug-related violence that has killed 4,600 people in the past two years.
Mexico says 90 percent of the weapons used by drug gangs are bought in the United States, often legally. Mexican officials also want to see the U.S. Congress reinstate a ban on the sale of assault weapons that expired in 2004.
U.S. gun rights groups generally oppose such a restriction. Read more