The New York Times writes about the U.S. effort to spy on Mexican drug cartels -- and how they've been able to place informants in some very sensitive places. It's not clear, though, if they're really hindering drug exports to America. I thought the Mexican attitude to American involvement was interesting:
“The Mexicans sort of roll their eyes and say we know it’s happening, even though it’s not supposed to be happening,” said Eric L. Olson, an expert on Mexican security matters at the Woodrow Wilson Center.

