Article snippet: If North Korea follows through on its latest threat of setting off a nuclear explosion over the Pacific Ocean, it will ultimately be up to Rex Tillerson told ABC News today. ABC News Anchor United Nations General Assembly this week. "If we see this detonation of an H-bomb in the Pacific, what will the U.S. do?" Muir asked. "Will there be military action?" "That will be the president’s decision," Tillerson said. "There is assembled on a standing basis a Link to the full article to read more