What do you think: is it manifest destiny that the United States acquire or at least exercise control over Greenland? That’s pretty much how we got Texas, California, New Mexico, Hawaii, the Philippines, Puerto Rico, Guam and American Samoa. Then there was the Louisiana purchase. In 1803, Thomas Jefferson doubled the size of the United States, paying France $15 million or a bit less than three cents per acre for a land mass that is about 26 percent of the contiguous United States. And let’s not forget about Alaska. A few facts about Greenland. It is big: 836,000 square miles....