What do you think about Obama bowing to Heads of State and Royalty?

I think he shouldn’t do it. Especially a deep bow at the waist. From what I understand about most Asian cultures, the deeper the bow signifies your level within a heirarchy to the person you are bowing to. So a secretary would bow her head down to waist level when meeting the CEO, but a CFO and CMO meeting each other might do only a slight forward motion, barely bend at the waist to each other, as a greeting. So if two leaders meet, one should not be bowing to the waist of the other.

Also, it is my understanding that protocol has always been that US presidents don’t bow or curtsy in the presence of royalty or leaders from other countries.

I am fine if he does a slight bow, but not what he did.