Google is saying goodbye to Project Loon, its long-running effort to bring broadband connectivity to rural areas via free-floating balloons. The moonshot project launched in 2013 with a mission to deliver Internet access to "all the world's people" including remote locations on every continent." In a blog posting, Alastair Westgarth, CEO of Loon, said the company simply did not find a way "to get the costs low enough to build a long-term, sustainable...