The U.S. government’s move to put South Korea — a nonnuclear ally — in the same company as countries like China or North Korea has unsettled politicians in Seoul

The US energy department put South Korea on a watchlist because visitors to its laboratories mishandled sensitive information, Joseph Yun, the acting US ambassador, said on Tuesday.

Wi Sung-lac, a veteran public official with expertise in foreign affairs, said that some lawmakers within his own Democratic Party were rethinking their consideration of pursuing nuclear latency follo