By Tom Z. Collina If you need proof that outdated, Cold War thinking is blocking smart budget decisions and progress to trim nuclear excess, read on. Open warfare has broken out between the White House Office of Management and Budget (OMB) and the Navy over how many nuclear-armed submarines the nation needs for the future. As reported at defense.aol.com , OMB is challenging the Navy's claim that it needs 12 new subs to carry more than 1,000 nuclear weapons into the 2080s. Over its 50 year lifetime, a 12 sub fleet is expected to costs about $350 billion, a hefty price tag even in good economic...