The mission over Libya already has run up a bill in the hundreds of millions of dollars. Though the intervention is limited when compared with the wars in Iraq and Afghanistan, it still costs money — for bombs, missiles, fuel and maintenance, among other things/…/A study released in early March from the Center for Strategic and Budgetary Assessments estimated it would cost between $30 million and $100 million a week to maintain a limited no-fly zone in Libya. The study estimated it could cost up to $800 million up front to take out Libya’s air defense systems — though that estimate could run high since it assumed the United States, now part of a coalition, would bear most of the cost.