Going back on declarations inclines others to test U.S. resolve.
The Iranian press was unusually optimistic about the failed Kazakh negotiations. That hints at space for agreement.
Obama will have trouble fully realizing the goals he set in Prague four years ago.
If America tries to unilaterally lead disarmament, few will follow.
Pushing the Russians for further bilateral arms reduction serves American interests.
Acquiring nuclear weapons would be harmful to Tehran's interests.
Where the candidates come down on Syria, Iran and other key regional questions.
Despite the controversial satellite launch, Kim Jong-un is hinting at economic reform and rapprochement with Washington and its allies.
Netanyahu's UN speech about Iran was delivered in front of the world but meant only for Israelis.
Obama's efforts to slow Iran's nuclear program have done nothing. No wonder Netanyahu is edgy.