A key Senate committee on Thursday approved a new nuclear arms reduction treaty with Russia, picking up enough Republican support to indicate that the pact could squeak through the full Senate. But a wild card emerged in the proceedings when Sen. Jim Risch, R-Idaho, said that the intelligence community had at the last minute produced 'some very serious information that directly affects what we're doing here.' He did not reveal what the information was. Sen. John Kerry, D-Mass., chairman of the Foreign Relations Committee, said that he had been briefed on the new development and that 'the conclusion of the intelligence community is, it in no way alters their judgment already submitted to this committee with respect to the START treaty.' He also declined to describe the new intelligence. The senators approved the New Strategic Arms Reduction Treaty by a vote of 14 to 4, making it eligible to go to the Senate floor, where it needs 67 votes to pass. It won the support of all the Democrats on the committee, as well as that of Sen. Richard Lugar, R-Ind., a longtime arms-control proponent, and two other Republicans the administration had fought to win over - Sens. Bob Corker, Tenn., and Johnny Isakson, Ga. The treaty trims each side's long-range deployed nuclear warheads to 1,550 and permits resumption of mutual inspections of arsenals, which lapsed when a predecessor treaty lapsed in December. 