The Cost of War

From Nicholas D. Kristof:

For every additional second we stay in Iraq, we taxpayers will end up paying an additional $6,300... In the run-up to the Iraq war, Donald Rumsfeld estimated that the overall cost would be under $50 billion. Paul Wolfowitz argued that Iraq could use its oil to “finance its own reconstruction.” But now several careful studies have attempted to tote up various costs, and they suggest that the tab will be more than $1 trillion — perhaps more than $2 trillion. The higher sum would amount to $6,600 per American man, woman and child.
… We’re spending $380,000 for every extra minute we stay in Iraq, and we can find better ways to spend that money.

Meanwhile, so-called conservatives are in favor of continuing this effort?