(CNN) -- The United States shares the blame for Mexican drug trafficking and the attendant violence that has killed thousands in the past year alone, Secretary of State Hillary Clinton said Wednesday. Secretary of State Hillary Clinton is in Mexico for a series of meetings on the drug crisis and other issues. "Our insatiable demand for illegal drugs fuels the drug trade," she said en route to Mexico City, Mexico, according to pool reports. "Our inability to prevent weapons from being illegally smuggled across the border to arm these criminals causes the deaths of police officers, soldiers and civilians. So, yes, I feel very strongly we have a co-responsibility."
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NEW: Clinton says fighting does not pose major threat to U.S. security -- yet
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Mexico's U.S. ambassador says willingness to share an "encouraging sign"
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"Our insatiable demand for illegal drugs fuels the drug trade," Clinton says in Mexico
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U.S. needs to stop flow of guns, body armor, night-vision goggles to cartels, she says
The @placeholder army arrested a man Mexico calls a top drug cartel chief and four of his bodyguards, the government announced Wednesday.