Can Iran's Diplomacy Be Trusted?

American Thinker has a link to an article entitled Can Iran Be Trusted? by Michael Rubin.
Dr. Rubin is a senior fellow at The American Enterprise Institute for Public Policy Research. In his article Dr. Rubin points out many examples of Iran using diplomatic efforts for the sole purpose of buying time. Time that they need to move their interests further down the field without serious consequences. This very good article like many others leaves the reader to wonder, Just what is the purpose of the U.N.?