UN rights chief Michelle Bachelet said on Monday she will not seek a second term, ending months of speculation, insisting she wanted to spend more time with her family in Chile. The surprise announcement came as the 70-year-old former Chilean president opened the United Nations Human Rights Council’s 50th session. “As my term as High Commissioner draws to a close, this Council’s milestone 50th session will be the last which I brief,” Bachelet told the diplomats gathered in Geneva. Today, I briefed @UN_HRC, opening my last session as High Commissioner. I will not be seeking a second term for pe…