knott full engagement, because that would be against one of the red -- one of the pillars of their establishment. i do not think that the islamic republic, especially the right, once a fully normalized relation. if the u.s. opens an embassy in iran, then there will be pressure for the system to open up. this is not something that the revolutionary guards are interested in. the third point is that full engagement is under that type of environment. he was able to engage in the united states because that gave them some wiggle room. now covers all levels of government, from supreme leadership to the parliament. even if he becomes president, he will just be part of the executive branch. he will not be able to make major decisions. so, in conclusion, the u.s. should be a very patient. i do not think that sanctions will work with it planned. i think the leadership is pragmatic enough to engage the u.s. on a limited number of issues. it is a very dysfunctional system. thank you. [applause] >> dr keith crain will now explain the vulnerabilities in the iranian economy. >> i'm going to turn to talk little