The Buzz The XB-70 Valkyrie: The Sad Story of the Biggest and Fastest U.S. Bomber Ever Dave Majumdar December 6, 2017 TweetShareShare Dave Majumdar is the defense editor for The National Interest. You can follow him on Twitter: @davemajumdar. This first appeared in late 2015 and is being reposted due to reader interest. Pages« first ‹ previous 1 2 TweetShareShare View the discussion thread.