This from The New York Times:
Defense Secretary Robert M. Gates has warned in a secret
three-page memorandum to top White House officials that the United States does not have an effective long-range policy for dealing with Iran's steady progress toward nuclear capability, according to government officials familiar with the document.
Several officials said the memo touched off an intense effort inside the Pentagon, the White House and the intelligence agencies to develop new options for President Obama. They include a revised set of military alternatives, still under development, to be considered should diplomacy and sanctions fail to force Iran to change course.