It's not often that we get to reference "Star Wars" on the show, but when engineers say they're going to test an unmanned aircraft and have it fly at five times the speed of sound, it just seems appropriate. This morning on "Early Start," CNN Pentagon correspondent Barbara Starr explained why engineers and geeks are … Continue reading Air Force's unmanned hypersonic Waverider flight test to be 'fastest hunk of junk in galaxy'? Barbara Starr on what it could mean for future air travel