"The administration of President Barack Obama repaid all the money the United States owed the United Nations last year. U.S. Ambassador Susan Rice told reporters on Thursday that Washington pays its U.N. dues "in full and on time."
She said there was an issue of "contested arrears" -- debts that Washington does not agree it owes the United Nations.
"They must be counting contested arrears if it gets to a figure which gets close to anything like that," she said in reference to the $1.2 billion figure cited by Kane.
As the United Nations' single biggest contributor, Washington is responsible for roughly one-quarter of the U.N. peacekeeping budget and slightly less than a quarter of the separate U.N. regular budget."