Planned appearance by Venezuelan opposition leader called off on eve of Nobel Peace ceremony

OSLO, Norway (AP) — A planned news conference on Tuesday by Venezuelan opposition leader and Nobel Peace Prize winner María Corina Machado was canceled after a several-hour delay, a day before the award ceremony in Oslo. Machado, who last appeared in public 11 months ago, had been due to hold a traditional news conference by the laureate the day before the formal award ceremony. But the lunchtime event was delayed without explanation, until the...