real beauty page nolvadex buy uk Fourth, Americaâs credibility is at stake. Opponents of a US strike have questioned whether the US will really suffer a blow to our reputation if we fail to act. They could not be more off base. Nation states, like individuals, are judged every day on whether they are reliable and honor their promises. Credibility is a real and tangible commodity in international politics. It takes decades to acquire a good reputation and only a short time to see it evaporate. John McCain is right again to warn that if Congress fails to authorize force in Syria, it would be a âcatastropheâ for Americaâs credibility.