AUSTIN — Russians were behind the Texas furor over the Jade Helm 15 federal military exercise, which drew so much concern that Gov. Greg Abbott directed the State Guard to monitor the operation, former CIA director Michael Hayden said on MSNBC. Hayden, a retired Air Force general who also headed the National Security Agency in 1999-2005, was on Wednesday’s podcast by “Morning Joe.” He has a new book, “The Assault on Intelligence: American National Security in an Age of Lies,” and discussed Russia’s focus on information warfare. Rusians “took their game to North America in 2015,” said Hayden, who was...