And when the Constitution was written they could not have conceived of it being possible to melt down an entire city and, if they all happened to be in town for an important session of Congress, kill EVERYBODY in your total government.
The most important question is simply this: Is it POSSIBLE to decaptitate this entire gov't with one well-timed nuclear explosion?
If it's possible, then we should have a backup plan.
US Constitution, Article II Section 1:
In case of the removal of the President from office, or of his death, resignation, or inability to discharge the powers and duties of the said office, the same shall devolve on the Vice President, and the Congress may by law provide for the case of removal, death, resignation or inability, both of the President and Vice President, declaring what officer shall then act as President, and such officer shall act accordingly, until the disability be removed, or a President shall be elected.Congress, way back when nukes first came into existence, prepared law as to who succeeds to the office of President in the event most of Washington is dead: US Code, Title 3, Chapter 1, section 19:
If, by reason of death, resignation, removal from office, inability, or failure to qualify, there is no President pro tempore to act as President under subsection (b) of this section, then the officer of the United States who is highest on the following list, and who is not under disability to discharge the powers and duties of the office of President shall act as President: Secretary of State, Secretary of the Treasury, Secretary of Defense, Attorney General, Secretary of the Interior, Secretary of Agriculture, Secretary of Commerce, Secretary of Labor, Secretary of Health and Human Services, Secretary of Housing and Urban Development, Secretary of Transportation, Secretary of Energy, Secretary of Education, Secretary of Veterans Affairs