As Cheney well knows, unless he has lost even the most tenuous grip on reality, Obama’s commitment to warfare as an instrument in the fight against terrorism has won the president nothing but grief from the liberal wing of his party, with more certainly to come. Hasn’t anyone told Cheney that Obama is sharply boosting troop levels in Afghanistan in an attempt to avoid losing a war that the Bush administration started but then practically abandoned?

Cheney knows this. But he goes on to use the big lie — that Obama is “trying to pretend we are not at war” — to bludgeon the administration on a host of specific issues. Here is the one that jumps out at me: The president, Cheney claims, “seems to think that if he closes Guantanamo and releases the hard-core al Qaeda-trained terrorists still there, we won’t be at war.”

Interesting that Cheney should bring that up, because it now seems clear that the man accused of trying to blow up Northwest Flight 253, Umar Farouk Abdulmutallab, was given training — and probably the bomb itself, which involved plastic explosives sewn into his underwear — by al-Qaeda operatives in Yemen. It happens that at least two men who were released from Guantanamo appear to have gone on to play major roles as al-Qaeda lieutenants in Yemen. Who let these dangerous people out of our custody? They were set free by the administration of George W. Bush and Dick Cheney.