"The process of cutting down nuclear potential should include other countries with nuclear weapons," Russian diplomats told Washington ahead of Obama's speech on the subject in Berlin, foreign policy aide Yury Ushakov said.

"The situation now is not like in the 1960s and 1970s when only the United States and the(former) Soviet Union held talks on reducing nuclear arms," Ushakov said at a news conference in Moscow.

"Now we need to look more broadly ... and increase the circle of participants in possible contacts on this matter."

About the broadcaster:

Lance Crayon is a videographer and editor with China Daily. Since living in Beijing he has worked for China Radio International (CRI) and Global Times. Before moving to China he worked in the film industry in Los Angeles as a talent agent and producer. He has a B.A. in English from the University of Texas at Arlington.

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