U.S. Secretary of State Warren, the 17th Congress attended the hearing, said he did not say, during a visit to China to cut U.S. missile defense system to get the support of China to force North Korea to abandon its nuclear weapons. But Kerry pointed out that China is the largest country on the Korean influence, if not the support of China, North Korea may crash.

Kerry 17 to the House of Representatives Foreign Affairs Committee, said during a visit to China, he did not propose to cut missile defense system in exchange for Chinese pressure on North Korea.

Kerry: "I said, I have not made any transactions not considered this I have said publicly, I repeat, the President of the United States directly to the deployment of missile defense, do a direct response to North Korea (provocation)."

Kerry said that if North Korea is no longer provocation, the United States consider adjusting the deployment of the missile defense system is a logical move, this is not the exchange of interests. However, Kerry stressed that China is still the largest country of the influence of North Korea, China, North Korea may crash.

Kerry: "Only one country has maximum stability to exert influence, China and we discussed this, we all agree that in the next few days, we have already begun the process of ongoing and I think you can say so, there is no China, North Korea may collapse. "

Kerry said the U.S. Joint Chiefs of Staff Chairman Dempsey, and U.S. Deputy Secretary of State Burns will visit China in the near future, and hope to continue negotiations with the Chinese side on the DPRK issue.