Arizona Senator John McCain has proposed a massive increase in military spending, arguing that the US must be able to fight and win conventional wars in Europe, Asia, and the Middle East. Is this a great leap forward...or a blunder back to the past?

Arizona Senator John McCain has proposed a massive increase in military spending, arguing that the US must be able to fight and win conventional wars in Europe, Asia, and the Middle East. Is this a great leap forward...or a blunder back to the past?