Now that Barack H. Obama is the Democratic front-runner – and according to at least one poll the national front-runner — shouldn’t the media begin to give his remarks a bit more scrutiny? For example, at the debate in New Hampshire Saturday night he said:"Now, I had no doubt — and I said at the time, when I opposed the surge, that given how wonderfully our troops perform, if we place 30,000 more troops in there, then we would see an improvement in the security situation and we would see a reduction in the violence."But a year ago this month,...