The number of people reported missing after catastrophic flash floods and mudslides along the Nepal-China border has risen sharply to nearly 3,000, while more than 680 have died, local authorities said Saturday.Search and rescue efforts have continued since Wednesday's disaster, with over 2,420 people reported missing in Nepal and more than 550 in China. Concerns are also growing that a natural dam formed near the border during the disaster could rupture and cause another catastrophe.A Japanese family of five from Osaka Prefecture with the surname "Yamamoto," consisting of a couple in their…READ FULL ARTICLE