Gene Roddenberry had always used the original "Star Trek" to help produce commentary on social issues of the time like the Vietnam War, the Cold War and the like. It's something that has been done for many years with other science fiction writers both before and after Roddenberry as well ... but it's something that has been mostly absent from most science-fiction of today. That could change, however, with the new "Battlestar Galactica" series set to debut this week on United Kingdom's Sky One, and in January in the United States. "For those of us who take our sci-fi with...