Despite speculation that top U.S. envoy for North Korea Stephen Biegun might visit Pyongyang during his trip to Beijing amid stalled nuclear talks, there was no confirmation Friday that such a trip had taken place.Biegun, who has been recently approved as deputy secretary of state, met with Vice Foreign Minister Le Yucheng earlier in the day and exchanged views on North Korean issues, the Chinese Foreign Ministry said.China is known as Pyongyang's closest and most influential ally. Biegun was making a two-day trip to Beijing from Thursday, with a year-end deadline set by North Korea for pro…READ FULL ARTICLE