N. Korea threatens to sink U.S. nuclear submarine deployed to S. Korea Prison Planet.com Posted on May 1, 2017 Posted in Aggregated No Comments Tagged with Featured Stories, Tile Yonhap | North Korea on Sunday threatened to sink the underwater vessel, accusing America of stepping up military intimidation. Share this:Share Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email