Your argument only works if the cost and the benefit are to the same entity. In this case of a trillion dollar war, the cost is to the US taxpayer, and the sol

Your argument only works if the cost and the benefit are to the same entity. In this case of a trillion dollar war, the cost is to the US taxpayer, and the soldiers who fight the war. The economic benefits go to military contractors, the various war departments of the USG who need reasons to keep their budgets intact, and holders of the US Government's debt (http://finance.townhall.com/columnists/politicalcalculations/2013/01/21/who-really-owns-the-us-national-debt-n1493555/page/full http://finance.townhall.com/columnists/politicalcalculations...)