The great constitutional corrective in the hands of the people against usurpation of power, or corruption by their agents is the right of suffrage; and this when used with calmness and deliberation will prove strong enough.
Once you're halfway home, you know that you can probably get the rest of the way there.
I think in the corridors of power these dangerous kinds of orders are issued in a much more vague way, passed down two or three levels of command before they're given to the assassin.

