Do we really need all those nukes?

This from the FBI Infragard daily news bulletin:

14. February 14, Global Security Newswire – (National) U.S. to replace nuke delivery platforms. The U.S. Presidential administration's fiscal 2012 budget request calls for the United States to replace the land-, air-, and sea-based components of its nuclear deterrent, potentially setting the nation on a course that could cost hundreds of billions of dollars over 5 decades, Time magazine reported. The administration rolled out its budget February 14 for the fiscal year that begins October 1. The move toward replacing all three components of the nation's nuclear "triad" stems from the conclusions of the administration's Nuclear Posture Review, which asserted "retaining all three triad legs will best maintain strategic stability at reasonable cost, while hedging against potential technical problems or vulnerabilities." Source: http://www.globalsecuritynewswire.org/gsn/nw_20110214_1414.php