Washington (CNN) -- President Obama is "very concerned" about Greece's economic crisis, sees mounting threats against the United States from non-state actors and wants to resolve the dispute with Russia over adoptions, he said in an interview released Saturday by the White House. "I am very concerned about what's happening in Europe," Obama told the Russian television station Channel Rossiya in the wide-ranging interview, responding to a question about the Greek economic crisis. "But I think it is an issue that the Europeans recognize is very serious," he said. "Greece is taking some very difficult measures -- at least they've put forward a plan that calls for difficult measures."
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President Obama troubled by Greece's economic woes
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European Union leaders call for "stabilization mechanism" to ease markets
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Obama seeks resolutions to nuclear arms treaty, adoption issues with Russia
But Obama said that "there have been tens of thousands of @placeholder children adopted by U.S. families.
"It's important to recognize that the whole concept of reset between U.S. and @placeholder relations is not just on issues of security," Obama said.