U.S.National Security Advisor General James Jones says the United States will continue to work closely with the Mexican government as it fights an often bloody battle against the drug syndicates.

VOA: standard.2009.08.10

But U.S. National Security Advisor Sandy Berger said Sunday that the United States has "physical evidence" that the factory was manufacturing a chemical used to make deadly VX nerve gas.

CNN: Sudan demands U.S. apology for missile attack

For instance, we have a separate one with our quad partners -- Germany, France, the U.K. and the United States -- where Tom Donilon regularly has a secure videoconference with his national security advisor counterparts.

WHITEHOUSE: Press Briefing with Jay Carney and Ben Rhodes