The decision to re-review the pipeline route is an amazing victory for political expediency. By ensuring that nothing will happen until after the 2012 election, Mr. Obama buys himself a reprieve with the environmentalists. But nothing else will change. The U.S. will not consume a litre less of oil if Keystone is never built. It will simply buy the oil from somewhere else. Nor will this decision threaten the long-term future of the oil (oops, tar) sands. If the U.S. doesn’t buy our oil, the Chinese will.