John Prados wrote a small tome "Safe for Democracy: The Secret Wars of the CIA" back in 2006 I believe......there is one chapter titled: Adventures in Asia, the chapter after that one is titled Acceptable Norms of Human Conduct Do Not Apply. CIA operatives in warfighting capacities is nothing new which is why I am surprised COLONEL KATHRYN STONE has not cited any historical context in her brief. But, noting the date 2003 and the imminent action in Iraq it is clear what the document was intended to communicate.
My view is that a CIA that concerned itself entirely with gathering intelligence would be constitutional, but any operational role for the CIA is unconstitutional. Moreover, authorization of such operations by the President is ALSO unconstitutional. Such acts are acts of war and require a declaration of war by Congress. Period.