Is Puerto Rico really a part of the United States? And if it is, is it worth defending from attack? That's the emerging issue right now because Venezuelan dictator Hugo Chavez has just made his first threat on the U.S . commonwealth as he seeks to acquire advanced submarines.Chavez is heading to Russia in the next few days, to discuss the purchase of five kilo-class submarines, and possibly four more advanced amur-class subs. There are questions as to how he would be able to finance them as well as how obtain the advanced training to bring them online, but there is no question from his statments that he wants them. Saturday, he laid it all out as AFP reported: "They're making all this noise because Venezuela is going to buy some submarines. And I told them, 'Why not?'" Chavez said without confirming or denying the rumor. "We've got half a million square kilometers of (Caribbean) sea, to the north, we've got Puerto Rico, in other words the empire (as he...(Read Full Post)