SEOUL: South Korea swore off nuclear weapons in a recent pact with the U.S., but the deal may have just put a temporary pause on the debate in Seoul. South Korea is surrounded by nuclear powers and many among the public and in the elite political class are still in favor of the country developing its own nuclear weapons. President Yoon Suk Yeol signed the pact, but one of the most prominent voices supporting nuclear weapons for South Korea comes from his own ruling partly: Seoul Mayor Oh Se-hoon. “Only nukes can counter nukes," Oh said in an interview at…