I've heard the Air Force argument before. If your that caught up over a name perhaps we should change it back to the "Army Air Corps?" Does it make the Air Force any less of an Army since the name change? Intelligence services? We could easily place them under the authority of the Department of Defense or State Department, both of which were used as intelligence services before the CIA.
Good arguments all, but it seems you are trying to have your cake and eat it too. There is absolutely no mention in the Constitution of an intelligence service, and if you argue that it is implicit in the concept of other government agencies, where does it end? Where does the authority to prescribe weights and measures end? Is "No child left behind" testing derived from that clause? Does that give the federal government full authority to regulate education, because it can be measured?
It seems that you have adopted a far looser construction than I use, for your argument for "implied powers" is much broader than mine.
You might want to consult Blackstone which is the original source of Hamilton's position, but it's still a cute story. Legal terms often have meanings different from common usage, and "necessary", "proper", and "useful" are related terms with a history traced to the Statutes of Edward I.
There is plenty of evidence that most of those at the constitutional convention with a written record on the issue of the meaning of the words "general welfare" sided with Madison. This is not an issue of strict constructionism as there is more than one area of the constitution where strict constructionism applies more, and others, where it applies less. "Cruel and Unusual," for example, obviously cannot be interpreted via strict constructionism.
I agree with you, but that insight seems to contradict your position. Who decides and on what basis which portions of the Constitution are to be strictly constructed and which not? It seems to me that you have talked yourself into exactly my position as I discussed the Founders' attitudes toward the amendment process and flexibility in applying the Constitution.
But if we end up having essentially arrived at the same spot by different roads, there is no difference of principle and no harm in that.