Kerry's warning to Trump about new attacks on Iran Former US Secretary of State: The situation is so unpredictable that anything can happen. In my opinion, starting the post-election period with a military attack would be a very big mistake. This is not an action that will influence the Iranians or encourage them to come to the negotiating table in a more serious way; But in fact, it will keep them away. You can't bomb the knowledge of the bomb. I urge the US government to continue negotiations through multiple diplomatic channels.