A confusing and unintelligible tweet released by U.S. Strategic Command (Stratcom) Sunday night drew ridicule and thousands of shares on Twitter after the military arm tweeted “;l;;gmlxzssaw.” The garbled message, released at 7:48 p.m., received more than 11,000 retweets and hundreds of comments before it was deleted roughly half an hour later. “Apologizes for any confusion. Please disregard this post,” Stratcom, based at Offutt Air Force Base, Neb., tweeted quickly thereafter, then deleted that apology. The bizarre message drew speculation that it was the military’s inadvertent release of the “nuclear launch codes,” jokes that a cat was allowed on the...