Radar, as compared with its modern types, was primitive in quality and inadequate in quantity. Automatic antiaircraft guns, interceptor planes, and night fighters were either nonexistent in the early days of the blitz or in a crude stage of development compared with present equivalents. How vastly different is our situation today vis-à-vis Russia! Instead of a short hop across the English Channel she would have to cross the Atlantic or the Pacific to reach our continent, whereas we can reach her heartland from bases all around her borders. It is unthinkable that any of her bombers can cross either ocean without being detected hundreds of miles before they reach our shores. With modern radar devices, which are constantly being improved, and fleets of fast interceptors far in advance of anything Russia could develop, we would destroy them long before they would do us any harm. If she attempts to fly over the North Pole, she will still have to cross all of Canada before she can reach us, and if we and our Canadian friends are on the alert, as we must and shall be, any hostile planes could be detected and destroyed over the Arctic. There is, of course, the possibility of exploding an H-bomb some distance off shore from a submarine or from a tramp steamer, but here, too, eternal vigilance will be the price of our liberties and our lives. There can be no question that we shall succeed in finding the answer to the detection of the Snorkel-type submarine and master it just as we mastered the earlier types. American ingenuity and superior technology have never failed yet in the face of an emergency, and it is unthinkable that they should fail now. We often hear it said that an enemy could smuggle an A-bomb in small parts into this country and assemble it here. While such an operation is possible, its successful execution against a nation fully on guard is highly improbable. As for the H-bomb, it requires large quantities of liquefied gas, which must be kept in a vacuum surrounded by large vessels of liquid air. In addition it must have its A-bomb trigger and other complicated devices. All this makes its surreptitious smuggling into a country such as ours even more improbable.