The banter between Prime Minister Binyamin Netanyahu and President Barack Obama, after Obama stepped off of Air Force One Wednesday, was about red lines. Specifically, when Obama was unsure of where to walk, Netanyahu told him to follow the red lines that were painted on the tarmac.

In an off-the-cuff response, Obama joked about Netanyahu's tendency to paint red lines – a reference to his famous U.N. speech about the Iranian bomb – and Netanyahu also answered jokingly that the red lines on the tarmac were in fact part of an Israeli plot that was meticulously planned in advance.