From an editorial via Atrios:

In exchange for our uniformed young people’s willingness to offer the gift of their lives, civilian Americans owe them something important: It is our duty to ensure that they never are called to make that sacrifice unless it is truly necessary for the security of the country. In the case of Iraq, the American public has failed them; we did not prevent the Bush administration from spending their blood in an unnecessary war based on contrived concerns about Iraq’s weapons of mass destruction. President Bush and those around him lied, and the rest of us let them. Harsh? Yes. True? Also yes. Perhaps it happened because Americans, understandably, don’t expect untruths from those in power. But that works better as an explanation than as an excuse.