What about taking this Tweet literally instead of metaphorically?
What can be done now to address this concern of injustice in the past?
A parallel is being drawn between past and current events by Minister Zarif; he has the right to do that, people have the right to interpret events.
However, since the first event is still clearly of major importance, and he's saying that restitution was never made, can the first event now be addressed to resolve it as much as possible for Iran?
