U.S. Republican presidential candidates voiced their concerns on the country's debt on Wednesday, saying it could constitute a threat to national security.
During a TV debate in Iowa, the last round before caucuses set on Jan. 3, nine Republican presidential candidates were asked to comment on the relations between national debt and security.
"Any nation that no longer has economic strength sooner or later will lose its military strength, so it's a national security issue," said Arizona Sen. John McCain.
Former Massachusetts Governor Mitt Romney said the best way to solve the economic problems is to "make sure we have good jobs for our citizens, good schools for our kids, good health care for everyone and that we have policies that promote the growth of the nation."
House Representative from California Duncan Hunter cited the budget deficit and the trade loss as threats to national security.
Former New York Mayor Rudy Giuliani acknowledged debt is a "major problem," but did not elaborate on it.
They were also asked to raise their hands if they agree that global warming change is a serious threat and resulted by human activities, an issue rarely discussed at the Republican presidential candidate debate.
Led by former Tennessee Senator Fred Thompson, all candidates refused to comment on the supposition by raising hands.
No more than a month left for candidates to campaign for more votes before caucuses, the first contest of 2008 elections, most of them appeared to soften their tongue to each other and were asked to send new year resolution to their opponents.