While the doors in the Oval Office are wider than normal, I'm not sure they are necessarily designed for two heads-of-state to walk through simultaneously. President Obama is nonverbally demonstrating dominance by awkwardly trying to lean and shuffle into HIS OFFICE, before Prime Minister Benjamin Netanyahu. The Israeli leader is striding in much more casually. He's been there many times before and the Oval Office doesn't intimidate him. Territorial and ownership body language displays are not always fire hydrants and fences.