Innumeracy or hypocrisy

According to the NY Times, some in the Senate (on both sides of the aisle) are unhappy about attempts by House Democrats to legislate the recommendations of the 9/11 commission. Now, that's not necessarily unreasonable - it's always easier to "recommend" something than actually implement it in real life. However, one of the objections is that inspecting all air freight coming into the US would cost "$3.6B over the next decade, while ship inspections could cost even more." Wait a second here. We're spending $3.6B every two weeks in Iraq. How on earth can a similar expense spread out over 10 years be too much, while the same amount every couple of weeks is an acceptable cost for the War on Terror? I'm not trying to make a value judgment about either one, but I don't see how one can hold both points of view at the same time.