If we see two people talking at a distance of around two feet from each other, we assume they are engaged in the kind of conversation only possible between those who know and trust each other.

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"The wounds are deep, especially mine, but we only have each other, " said Lebanese parliamentary majority leader Saad Hariri, son of the killed former Lebanese Prime Minister Rafik Hariri.

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In that sort of relationship, as President Obama rightly described, there are moments that we speak frankly to each other and that frankness will only add to the strength of the relationship and contribute to the successes that we have.

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But on the positive side, not only are we talking about a problem everyone seemed happier ignoring, we're also pushing each other to solve it and planning some even more ambitious experiments.

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