Obama vows justice for US Consulate attackers

>> week across the middle east has the white house dealing with an international crisis . a difficult balancing act for the president. about seven weeks until election day . here's more from mike viqueira.

>> reporter: today president obama vowed once more to bring those responsible to justice.

>> those who attack our people will find no escape from justice.

>> reporter: the images of besieged american embassies are just a small part of a larger picture.

>> for every angry mob millions yearn for the prix dofreedom and hope promised.

>> reporter: the white house insists the anti-american violence sweeping the region is not a rejection of the president's policy.

>> the unrest we have seen is a reaction to a film with which the united states government had no involvement.

>> experts say the administration must walk a fine line.

>> it is a dangerous political dynamic on the ground that's fuelled by the fact that the arab spring has not quickly found a very clear direction.

>> reporter: after initially taking hits for politicizing american deaths in libya, mitt romney softened his tone.

>> well, this is politics. i'm not going to worry about the campaign.

>> reporter: with romney trailing on the question of foreign policy running mate paul ryan continues to hammer the president.

>> uh amid all the threats and dangers what we do not see is steady, consistent american leadership.

>> reporter: today a close ally added more foreign policy pressure. in an interview to air on "meet the press" benjamin netanyahu insists president obama gets tougher with iran over their nuclear program .

>> iran is guided by a leadership with an unbelievable fanaticism. the same you see storming embassies today. do you want them to have nuclear weapons ?

>> reporter: the middle east once again a political flashpoint. nbc news, the white house .