Thus, at the beginning of the twenty-first century, even the constructivist turn in IR theory seems lacking the answers to certain key questions: Where did these ideas come from? How were they disseminated? How did they become persuasive? How did they become the new basis for state action? The standard mix of variables cannot give us a satisfying account, and thus the search for alternative visions in IR continues. And so it is that the republication of SBS comes at an opportune moment-for much of what SBS stood for in 1962 is precisely what is needed now in IR theory.
The difference is that in 1962, this could not be recognized, generally speaking.
But in 2002, I think there is a good chance that it will. The republication of SBS might have a significantly greater effect on the larger field of IR today than the framework was able to produce 40 years ago.