WASHINGTON (AP) - The head of the Joint Chiefs of Staff says military force would have only limited effect in stopping Iran from developing nuclear weapons but must remain an option.
Adm. Mike Mullen told his staff he believes political means are best at achieving regional security. Mullen says Baghdad shows no signs of backing down over what the United States and other countries say is its drive for a nuclear bomb.
Iran says its nuclear program is aimed at developing nuclear energy.
Mullen wrote that Iran's unrest, unpredictable leadership and sponsorship of terrorism make it a "regional and global concern."
Mullen's views were contained in an annual assessment of the nation's risks and priorities .
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