Obama said "we should check someone's criminal record before they can check out a gun seller; that a mentally unbalanced individual should not be able to get his hands on a gun so easily. These steps shouldn't be controversial. They should be common sense."

In any discussion it makes sense to identify where the limits of agreement and disagreement lie. So mightn't it be a good idea for some of the people who've contributed to this thread to indicate whether they'd agree that such checks would be common sense?