If you are a citizen of the country, then that's how it should be! No questions, no third degree, no BS, welcome home sir! That's how it is in the UK via automated e-gates (just slide in passport and look at screen - same as exit BKK), hell, we even extend that to Americans, Canadians, Europeans, Japanese, Koreans, Australians and New Zealanders.
My Cambodian GF just got a U.S. tourist visa. This will enable her visit with me to New York in August (assuming Cambodia is not on the no travel list by then). Fingers crossed. Just wonder what our welcome to the U.S. will be.