US Senate unanimously passes defense spending bill

The bill, passed after five days of debate and consideration of hundreds of amendments, must be reconciled with the version passed by the House of Representatives before it can go to President Barack Obama to be signed into law. There are several key differences between the House and Senate bills, including whether to back continued work by the military on developing biofuels for jets and warships. Senate Armed Services Committee Chairman Carl Levin said the key challenge facing the bill's enactment was the short amount of time available for House and Senate negotiators to come up with a compromise version before the end of this Congress. He said staff discussions had already begun. The top Republican on the committee, Senator John McCain,

said he was confident that the House and Senate would be able to resolve the differences between the two bills. Both senators said they were pleased that they had been able to shepherd the bill to Senate passage under an open process that allowed debate on amendments without having to deal with any threatened procedural roadblocks known as filibusters. Senate Majority Leader Harry Reid, a Democrat, has promised to try to change Senate rules when the new congress convenes next month to curb filibusters, which have become commonplace.

The Senate bill includes a new round of Iran sanctions, a permanent ban on

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