Devaluing Humanity in a War of Diminishing Returns

Presently, the war for Persian Gulf oil costs $9B per month + the cost for each barrel (totalling about $4.2B/month @ $65/BBL). If Congress approves the $120B package for the next year, the oil war will cost $10B per month (what's an extra billion dollars per month?) + the cost of oil ($4.2B/month assuming $65/BBL) or about $14.2B/month for Perisan Gulf oil. The actual monetary cost per barrel of Persian Gulf oil is about $220/BBL (ca. $65/BBL + our monthly military expenditures), not counting the 'value' of human lives (some estimates suggest it costs $6.5M to train and equip a single soldier; this times 160,000 troops in Iraq = $1B; so, I guess by comparison, life is, indeed, cheap). To date, the 2007 casualty rate is on track to meet the exponential function as I've described it below, thanks to "the surge" and the "insurgents" (of course, I am not including the lives of Iraqis in these calculations). It is beyond time that we develop a culture of conservation. What are you willing to do? One really needs to wonder what other good could be done with billions of dollars each month.